diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index cf1fa6ff8a1..dc7b5eb6f2f 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -208,7 +208,6 @@ app/models/async_transaction/va_profile @department-of-veterans-affairs/vfs-auth
 app/models/async_transaction/vet360 @department-of-veterans-affairs/vfs-authenticated-experience-backend @department-of-veterans-affairs/backend-review-group
 app/models/attachment.rb @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 app/models/average_days_for_claim_completion.rb @department-of-veterans-affairs/benefits-microservices @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
-app/models/backend_status.rb @department-of-veterans-affairs/backend-review-group
 app/models/bgs_dependents @department-of-veterans-affairs/benefits-dependents-management @department-of-veterans-affairs/backend-review-group @department-of-veterans-affairs/va-api-engineers
 app/models/central_mail_claim.rb @department-of-veterans-affairs/vfs-authenticated-experience-backend @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 app/models/central_mail_submission.rb @department-of-veterans-affairs/vfs-authenticated-experience-backend @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
@@ -358,7 +357,6 @@ app/serializers/async_transaction @department-of-veterans-affairs/vfs-authentica
 app/serializers/async_transaction/base_serializer.rb @department-of-veterans-affairs/vfs-authenticated-experience-backend @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 app/serializers/attachment_serializer.rb @department-of-veterans-affairs/vfs-10-10 @department-of-veterans-affairs/backend-review-group @department-of-veterans-affairs/va-api-engineers
 app/serializers/backend_statuses_serializer.rb @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
-app/serializers/backend_status_serializer.rb @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 app/serializers/category_serializer.rb @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 app/serializers/cemetery_serializer.rb @department-of-veterans-affairs/mbs-core-team @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 app/serializers/central_mail_submission_serializer.rb @department-of-veterans-affairs/backend-review-group
@@ -1151,7 +1149,6 @@ spec/factories/appeal_submission_uploads.rb @department-of-veterans-affairs/vfs-
 spec/factories/ask.rb @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/factories/async_transactions.rb @department-of-veterans-affairs/vfs-authenticated-experience-backend @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/factories/attachments.rb @department-of-veterans-affairs/vfs-mhv-secure-messaging @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
-spec/factories/backend_statuses.rb @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/factories/burial_claim.rb @department-of-veterans-affairs/mbs-core-team @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/factories/caregivers_assistance_claim.rb @department-of-veterans-affairs/vfs-10-10 @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/factories/central_mail_submissions.rb @department-of-veterans-affairs/vfs-authenticated-experience-backend @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
@@ -1714,7 +1711,6 @@ spec/rswag_override.rb @department-of-veterans-affairs/va-api-engineers @departm
 spec/serializers/appointment_serializer_spec.rb @department-of-veterans-affairs/vfs-vaos @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/serializers/async_transaction/base_serializer_spec.rb  @department-of-veterans-affairs/vfs-authenticated-experience-backend @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/serializers/attachment_serializer_spec.rb @department-of-veterans-affairs/vfs-10-10 @department-of-veterans-affairs/backend-review-group @department-of-veterans-affairs/va-api-engineers
-spec/serializers/backend_status_serializer_spec.rb @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/serializers/backend_statuses_serializer_spec.rb @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/serializers/category_serializer_spec.rb @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
 spec/serializers/central_mail_submission_serializer_spec.rb @department-of-veterans-affairs/vfs-authenticated-experience-backend @department-of-veterans-affairs/va-api-engineers @department-of-veterans-affairs/backend-review-group
diff --git a/app/controllers/v0/backend_statuses_controller.rb b/app/controllers/v0/backend_statuses_controller.rb
index cd2fc52ab07..e0c6e779270 100644
--- a/app/controllers/v0/backend_statuses_controller.rb
+++ b/app/controllers/v0/backend_statuses_controller.rb
@@ -7,21 +7,12 @@ module V0
   class BackendStatusesController < ApplicationController
     service_tag 'maintenance-windows'
     skip_before_action :authenticate
-    before_action :validate_service, only: [:show]
 
     def index
       options = { params: { maintenance_windows: } }
       render json: BackendStatusesSerializer.new(backend_statuses, options)
     end
 
-    # TO-DO: After transition of Post-911 GI Bill to 24/7 availability, confirm show action
-    # and related logic can be completely removed
-    #
-    # GET /v0/backend_statuses/:service
-    def show
-      render json: BackendStatusSerializer.new(backend_status)
-    end
-
     private
 
     # NOTE: Data is from PagerDuty
@@ -32,22 +23,5 @@ def backend_statuses
     def maintenance_windows
       @maintenance_windows ||= MaintenanceWindow.end_after(Time.zone.now)
     end
-
-    # NOTE: Data is GI bill scheduled downtime
-    def backend_status
-      @backend_status ||= BackendStatus.new(name: backend_service)
-    end
-
-    def backend_service
-      params[:service]
-    end
-
-    def validate_service
-      raise Common::Exceptions::RecordNotFound, backend_service unless recognized_service?
-    end
-
-    def recognized_service?
-      BackendServices.all.include?(backend_service)
-    end
   end
 end
diff --git a/app/controllers/v1/post911_gi_bill_statuses_controller.rb b/app/controllers/v1/post911_gi_bill_statuses_controller.rb
index 4836234f414..2e620542d41 100644
--- a/app/controllers/v1/post911_gi_bill_statuses_controller.rb
+++ b/app/controllers/v1/post911_gi_bill_statuses_controller.rb
@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require 'formatters/date_formatter'
-require 'lighthouse/benefits_education/outside_working_hours'
 require 'lighthouse/benefits_education/service'
 
 module V1
@@ -10,9 +9,6 @@ class Post911GIBillStatusesController < ApplicationController
     include SentryLogging
     service_tag 'gibill-statement'
 
-    # TO-DO: Remove this action after transition of LTS to 24/7 availability
-    before_action :service_available?, only: :show
-
     STATSD_GI_BILL_TOTAL_KEY = 'api.lighthouse.gi_bill_status.total'
     STATSD_GI_BILL_FAIL_KEY = 'api.lighthouse.gi_bill_status.fail'
 
@@ -36,16 +32,6 @@ def handle_error(e)
       render json: { errors: e.errors }, status: status || :internal_server_error
     end
 
-    # TO-DO: Remove this method after transition of LTS to 24/7 availability
-    def service_available?
-      unless Flipper.enabled?(:sob_updated_design) || BenefitsEducation::Service.within_scheduled_uptime?
-        StatsD.increment(STATSD_GI_BILL_FAIL_KEY, tags: ['error:scheduled_downtime'])
-        headers['Retry-After'] = BenefitsEducation::Service.retry_after_time
-        # 503 response
-        raise BenefitsEducation::OutsideWorkingHours
-      end
-    end
-
     def log_vet_not_found(user, timestamp)
       PersonalInformationLog.create(
         data: { timestamp:, user: user_json(user) },
@@ -69,11 +55,6 @@ def user_json(user)
       }.to_json
     end
 
-    # TO-DO: Remove this method after transition of LTS to 24/7 availability
-    def skip_sentry_exception_types
-      super + [BenefitsEducation::OutsideWorkingHours]
-    end
-
     def service
       BenefitsEducation::Service.new(@current_user&.icn)
     end
diff --git a/app/models/backend_status.rb b/app/models/backend_status.rb
deleted file mode 100644
index 8f1bc39999b..00000000000
--- a/app/models/backend_status.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-# frozen_string_literal: true
-
-require 'backend_services'
-
-# TO-DO: After transition of Post-911 GI Bill to 24/7 availability, confirm
-# BackendStatus (singular) model and related logic can be removed
-class BackendStatus
-  include ActiveModel::Serialization
-  include ActiveModel::Validations
-
-  attr_reader :name, :service_id
-
-  validates :name, presence: true
-  validates :is_available, presence: true
-  validates :uptime_remaining, presence: true
-
-  def initialize(name:, service_id: nil)
-    @name = name
-    @service_id = service_id
-  end
-
-  def available?
-    service_subject_to_downtime? ? BenefitsEducation::Service.within_scheduled_uptime? : true
-  end
-
-  def uptime_remaining
-    service_subject_to_downtime? ? BenefitsEducation::Service.seconds_until_downtime.to_i : 0
-  end
-
-  private
-
-  def service_subject_to_downtime?
-    return false if Flipper.enabled?(:sob_updated_design)
-
-    @name == BackendServices::GI_BILL_STATUS
-  end
-end
diff --git a/app/serializers/backend_status_serializer.rb b/app/serializers/backend_status_serializer.rb
deleted file mode 100644
index 83bc9c1c197..00000000000
--- a/app/serializers/backend_status_serializer.rb
+++ /dev/null
@@ -1,14 +0,0 @@
-# frozen_string_literal: true
-
-# TO-DO: After transition of Post-911 GI Bill to 24/7 availability, confirm
-# serializer and related logic can be completely removed
-class BackendStatusSerializer
-  include JSONAPI::Serializer
-
-  set_id { '' }
-
-  attribute :name
-  attribute :service_id
-  attribute :is_available, &:available?
-  attribute :uptime_remaining
-end
diff --git a/app/swagger/swagger/requests/backend_statuses.rb b/app/swagger/swagger/requests/backend_statuses.rb
index c67faedb5a7..af972fa9fb3 100644
--- a/app/swagger/swagger/requests/backend_statuses.rb
+++ b/app/swagger/swagger/requests/backend_statuses.rb
@@ -87,44 +87,6 @@ class BackendStatuses
           end
         end
       end
-
-      swagger_path '/v0/backend_statuses/{service}' do
-        operation :get do
-          key :description, 'Gets the status of backend service'
-          key :operationId, 'getBackendStatus'
-          key :tags, %w[backend_statuses]
-
-          parameter do
-            key :name, 'service'
-            key :in, :path
-            key :description, 'The name of the backend service'
-            key :required, true
-            key :type, :string
-            key :enum, BackendServices.all
-          end
-
-          response 200 do
-            key :description, 'Response is OK'
-            schema do
-              key :$ref, :Availability
-            end
-          end
-        end
-      end
-
-      swagger_schema :Availability do
-        key :required, %i[data]
-        property :data, type: :object do
-          key :required, %i[attributes]
-          property :id, type: :string
-          property :type, type: :string
-          property :attributes, type: :object do
-            key :required, %i[name is_available]
-            property :is_available, type: :boolean, example: true
-            property :name, type: :string, example: 'gibs'
-          end
-        end
-      end
     end
   end
 end
diff --git a/config/locales/exceptions.en.yml b/config/locales/exceptions.en.yml
index e43252ad1a2..ec92afe33ba 100644
--- a/config/locales/exceptions.en.yml
+++ b/config/locales/exceptions.en.yml
@@ -2247,13 +2247,6 @@ en:
         <<: *defaults
         code: LH_gateway_timeout
         status: 504
-    benefits_education:
-      outside_working_hours:
-        <<: *defaults
-        title: External service unavailable
-        detail: 'Lighthouse GI Bill Status is not available outside of working hours'
-        code: 114
-        status: 503
   evss:
     external_service_unavailable:
       <<: *defaults
diff --git a/config/routes.rb b/config/routes.rb
index 39d972369ae..b7131dddba1 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -337,7 +337,7 @@
     get 'profile/mailing_address', to: 'addresses#show'
     put 'profile/mailing_address', to: 'addresses#update'
 
-    resources :backend_statuses, param: :service, only: %i[index show]
+    resources :backend_statuses, only: %i[index]
 
     resources :apidocs, only: [:index]
 
diff --git a/lib/lighthouse/benefits_education/outside_working_hours.rb b/lib/lighthouse/benefits_education/outside_working_hours.rb
deleted file mode 100644
index 104f77c9a12..00000000000
--- a/lib/lighthouse/benefits_education/outside_working_hours.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-# frozen_string_literal: true
-
-require 'common/exceptions/base_error'
-
-# TO-DO: Remove this error after transition of LTS to 24/7 availability and associated lines
-# in exceptions.en.yml
-module BenefitsEducation
-  ##
-  # Custom error for when the user is attempting to access the service
-  # outside of working hours.  The service proxies to a service which
-  # has nightly downtime
-  class OutsideWorkingHours < Common::Exceptions::BaseError
-    ##
-    # @return [Array[Common::Exceptions::SerializableError]] An array containing the error
-    #
-    def errors
-      [Common::Exceptions::SerializableError.new(i18n_data)]
-    end
-
-    ##
-    # @return [String] The i18n key
-    #
-    def i18n_key
-      'lighthouse.benefits_education.outside_working_hours'
-    end
-  end
-end
diff --git a/lib/lighthouse/benefits_education/service.rb b/lib/lighthouse/benefits_education/service.rb
index b1c8418dc63..9d60de436a2 100644
--- a/lib/lighthouse/benefits_education/service.rb
+++ b/lib/lighthouse/benefits_education/service.rb
@@ -15,14 +15,6 @@ class Service < Common::Client::Base
 
     STATSD_KEY_PREFIX = 'api.benefits_education'
 
-    # TO-DO: Remove these constants after transition of LTS to 24/7 availability
-    OPERATING_ZONE = 'Eastern Time (US & Canada)'
-    OPERATING_HOURS = {
-      start: 6,
-      end: 22,
-      saturday_end: 19
-    }.freeze
-
     ##
     # @parameter [String] icn: icn of the Veteran requesting education benefits information
     # @return [BenefitsEducation::Service] a new instance of the service
@@ -66,57 +58,5 @@ def handle_error(error, lighthouse_client_id, endpoint)
         endpoint
       )
     end
-
-    ##
-    # TO-DO: Remove this method after transition of LTS to 24/7 availability
-    #
-    # @return [Boolean] Is the current time within the system's scheduled uptime
-    #
-    def self.within_scheduled_uptime?
-      current_time = get_current_time
-      if current_time.saturday?
-        (OPERATING_HOURS[:start]...OPERATING_HOURS[:saturday_end]).cover?(current_time.hour)
-      else
-        (OPERATING_HOURS[:start]...OPERATING_HOURS[:end]).cover?(current_time.hour)
-      end
-    end
-
-    ##
-    # TO-DO: Remove this method after transition of LTS to 24/7 availability
-    #
-    # @return [Integer] The number of seconds until scheduled system downtime begins
-    #
-    def self.seconds_until_downtime
-      if within_scheduled_uptime?
-        current_time = get_current_time
-        end_hour = current_time.saturday? ? OPERATING_HOURS[:saturday_end] : OPERATING_HOURS[:end]
-        tz = ActiveSupport::TimeZone.new(OPERATING_ZONE)
-        service_end_time = tz.parse("#{tz.today} #{end_hour}:00:00")
-        service_end_time - current_time
-      else
-        0
-      end
-    end
-
-    ##
-    # TO-DO: Remove this method after transition of LTS to 24/7 availability
-    #
-    # @return [String] Next earliest date and time that the service will be available
-    #
-    def self.retry_after_time
-      current_time = get_current_time
-      tz = ActiveSupport::TimeZone.new(OPERATING_ZONE)
-      service_start_time = tz.parse("#{tz.today} 0#{OPERATING_HOURS[:start]}:00:00")
-
-      return service_start_time.httpdate if current_time.hour < OPERATING_HOURS[:start]
-
-      service_start_time.tomorrow.httpdate
-    end
-
-    def self.get_current_time
-      Time.now.in_time_zone(OPERATING_ZONE)
-    end
-
-    private_class_method :get_current_time
   end
 end
diff --git a/postman/vets-api.pm-collection.json b/postman/vets-api.pm-collection.json
index 036eba50d0e..d50b14e5d58 100644
--- a/postman/vets-api.pm-collection.json
+++ b/postman/vets-api.pm-collection.json
@@ -145,43 +145,6 @@
 					},
 					"response": []
 				},
-				{
-					"name": "/v0/backend_statuses/{service}",
-					"event": [
-						{
-							"listen": "test",
-							"script": {
-								"exec": [
-									"pm.test(\"Endpoint returns valid backend status object\", function () {",
-									"    if (pm.response.code != 200) { return };",
-									"    var responseBody = pm.response.json();",
-									"    pm.expect(responseBody).to.have.property('data');",
-									"});",
-									""
-								],
-								"type": "text/javascript",
-								"packages": {}
-							}
-						}
-					],
-					"request": {
-						"method": "GET",
-						"header": [],
-						"url": {
-							"raw": "{{vets_api_env}}//v0/backend_statuses/gibs",
-							"host": [
-								"{{vets_api_env}}"
-							],
-							"path": [
-								"",
-								"v0",
-								"backend_statuses",
-								"gibs"
-							]
-						}
-					},
-					"response": []
-				},
 				{
 					"name": "/v0/forms",
 					"event": [
@@ -1175,4 +1138,4 @@
 			"type": "string"
 		}
 	]
-}
\ No newline at end of file
+}
diff --git a/spec/controllers/v1/post911_gi_bill_statuses_controller_spec.rb b/spec/controllers/v1/post911_gi_bill_statuses_controller_spec.rb
index 301939a0a7b..177ff442d51 100644
--- a/spec/controllers/v1/post911_gi_bill_statuses_controller_spec.rb
+++ b/spec/controllers/v1/post911_gi_bill_statuses_controller_spec.rb
@@ -2,7 +2,6 @@
 
 require 'rails_helper'
 require 'lighthouse/benefits_education/service'
-require 'lighthouse/benefits_education/outside_working_hours'
 
 RSpec.describe V1::Post911GIBillStatusesController, type: :controller do
   let(:user) { FactoryBot.create(:user, :loa3, icn: '1000000000V100000') }
@@ -12,13 +11,7 @@
 
   before { sign_in_as(user) }
 
-  context 'inside working hours' do
-    before do
-      # TO-DO: Remove this flipper toggle after transition of LTS to 24/7 availability
-      Flipper.enable(:sob_updated_design)
-      allow(BenefitsEducation::Service).to receive(:within_scheduled_uptime?).and_return(true)
-    end
-
+  context 'service is available' do
     it 'returns a 200 success' do
       # valid icn retrieved from
       # https://github.com/department-of-veterans-affairs/vets-api-clients/blob/master/test_accounts/benefits_test_accounts.md
@@ -65,32 +58,6 @@
     end
   end
 
-  # TO-DO: Remove this suite of tests after transition of LTS to 24/7 availability
-  context 'outside working hours' do
-    # midnight
-    before do
-      Flipper.disable(:sob_updated_design)
-      Timecop.freeze(tz.parse('2nd Feb 1993 00:00:00'))
-    end
-
-    after { Timecop.return }
-
-    it 'returns 503' do
-      get :show
-      expect(response).to have_http_status(:service_unavailable)
-    end
-
-    it 'includes a Retry-After header' do
-      get :show
-      expect(response.headers).to include('Retry-After')
-    end
-
-    it 'ignores OutsideWorkingHours exception' do
-      expect(Sentry).not_to receive(:capture_message)
-      get :show
-    end
-  end
-
   context 'when Breakers::OutageException is raised' do
     let(:mock_service) do
       instance_double(
diff --git a/spec/factories/backend_statuses.rb b/spec/factories/backend_statuses.rb
deleted file mode 100644
index 086c6e224ab..00000000000
--- a/spec/factories/backend_statuses.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-# frozen_string_literal: true
-
-FactoryBot.define do
-  factory :backend_status do
-    name { 'gibs' }
-    service_id { 'appeals' }
-
-    initialize_with { new(name:, service_id:) }
-  end
-end
diff --git a/spec/lib/lighthouse/benefits_education/service_spec.rb b/spec/lib/lighthouse/benefits_education/service_spec.rb
index 842d3010622..caeffa67946 100644
--- a/spec/lib/lighthouse/benefits_education/service_spec.rb
+++ b/spec/lib/lighthouse/benefits_education/service_spec.rb
@@ -43,87 +43,4 @@
       end
     end
   end
-
-  # TO-DO: Remove this context after transition of LTS to 24/7 availability
-  describe 'uptime/downtime tests' do
-    let(:tz) { ActiveSupport::TimeZone.new(described_class::OPERATING_ZONE) }
-    let(:late_time) { tz.parse('1st Feb 2018 23:00:00') }
-    let(:early_time) { tz.parse('1st Feb 2018 1:00:00') }
-    let(:saturday_time) { tz.parse('3rd Feb 2018 20:00:00') }
-    let(:non_dst) { tz.parse('18th Mar 2018 18:00:00') }
-
-    context 'not during daylight savings' do
-      before { Timecop.freeze(non_dst) }
-
-      after { Timecop.return }
-
-      it 'calculates at 6am tomorrow' do
-        calculated_time = tz.parse(described_class.retry_after_time)
-        expect(calculated_time.day).to eq(19)
-        expect(calculated_time.hour).to eq(6)
-      end
-    end
-
-    context 'before operating hours' do
-      before { Timecop.freeze(early_time) }
-
-      after { Timecop.return }
-
-      describe '#retry_after_time' do
-        it 'calculates at 6am today' do
-          calculated_time = tz.parse(described_class.retry_after_time)
-          expect(calculated_time.day).to eq(1)
-          expect(calculated_time.hour).to eq(6)
-        end
-      end
-    end
-
-    context 'after operating hours' do
-      before { Timecop.freeze(late_time) }
-
-      after { Timecop.return }
-
-      describe '#retry_after_time' do
-        it 'calculates tomorrow at 6am' do
-          calculated_time = tz.parse(described_class.retry_after_time)
-          expect(calculated_time.day).to eq(2)
-          expect(calculated_time.hour).to eq(6)
-        end
-      end
-    end
-
-    context 'on saturday' do
-      before { Timecop.freeze(saturday_time) }
-
-      after { Timecop.return }
-
-      describe '#within_scheduled_uptime?' do
-        it 'properly indicates availability' do
-          expect(described_class.within_scheduled_uptime?).to eq(false)
-        end
-      end
-    end
-
-    describe '.seconds_until_downtime' do
-      context 'during downtime' do
-        before { Timecop.freeze(late_time) }
-
-        after { Timecop.return }
-
-        it 'returns 0' do
-          expect(described_class.seconds_until_downtime).to eq(0)
-        end
-      end
-
-      context 'during uptime' do
-        before { Timecop.freeze(non_dst) }
-
-        after { Timecop.return }
-
-        it 'returns number of seconds until uptime ends/downtime starts' do
-          expect(described_class.seconds_until_downtime).to eq(14_400)
-        end
-      end
-    end
-  end
 end
diff --git a/spec/requests/swagger_spec.rb b/spec/requests/swagger_spec.rb
index bc2b7e3c700..85878860df9 100644
--- a/spec/requests/swagger_spec.rb
+++ b/spec/requests/swagger_spec.rb
@@ -51,12 +51,6 @@
     end
 
     describe 'backend statuses' do
-      describe '/v0/backend_statuses/{service}' do
-        it 'supports getting backend service status' do
-          expect(subject).to validate(:get, '/v0/backend_statuses/{service}', 200, headers.merge('service' => 'gibs'))
-        end
-      end
-
       describe '/v0/backend_statuses' do
         context 'when successful' do
           include_context 'simulating Redis caching of PagerDuty#get_services'
@@ -3803,21 +3797,12 @@
 
     context 'GI Bill Status' do
       it 'supports getting Gi Bill Status' do
-        Flipper.enable(:sob_updated_design)
-        Timecop.freeze(ActiveSupport::TimeZone.new('Eastern Time (US & Canada)').parse('1st Feb 2018 12:15:06'))
         expect(subject).to validate(:get, '/v1/post911_gi_bill_status', 401)
         VCR.use_cassette('lighthouse/benefits_education/200_response') do
           expect(subject).to validate(:get, '/v1/post911_gi_bill_status', 200, headers)
         end
         Timecop.return
       end
-
-      it 'supports Gi Bill Status 503 condition' do
-        Flipper.disable(:sob_updated_design)
-        Timecop.freeze(ActiveSupport::TimeZone.new('Eastern Time (US & Canada)').parse('1st Feb 2018 00:15:06'))
-        expect(subject).to validate(:get, '/v1/post911_gi_bill_status', 503, headers)
-        Timecop.return
-      end
     end
 
     describe 'decision review evidence upload' do
diff --git a/spec/requests/v0/backend_status_spec.rb b/spec/requests/v0/backend_status_spec.rb
index 9d44b7f5663..d97599e8372 100644
--- a/spec/requests/v0/backend_status_spec.rb
+++ b/spec/requests/v0/backend_status_spec.rb
@@ -8,84 +8,6 @@
 
   let(:user) { build(:user, :loa3) }
 
-  # TO-DO: After transition of Post-911 GI Bill to 24/7 availability, confirm show action
-  # and related logic can be completely removed
-  describe '#show' do
-    let(:token) { 'fa0f28d6-224a-4015-a3b0-81e77de269f2' }
-    let(:auth_header) { { 'Authorization' => "Token token=#{token}" } }
-    let(:tz) { ActiveSupport::TimeZone.new(BenefitsEducation::Service::OPERATING_ZONE) }
-    let(:offline_saturday) { tz.parse('17th Mar 2018 19:00:01') }
-    let(:online_weekday) { tz.parse('24th Jan 2018 06:00:00') }
-
-    before do
-      Session.create(uuid: user.uuid, token:)
-      User.create(user)
-    end
-
-    it 'responds 200' do
-      get v0_backend_status_url('gibs'), params: nil, headers: auth_header
-      expect(response).to have_http_status(:ok)
-    end
-
-    context 'for the gibs service' do
-      before { Flipper.disable(:sob_updated_design) }
-
-      context 'during offline hours on saturday' do
-        before { Timecop.freeze(offline_saturday) }
-
-        after { Timecop.return }
-
-        it 'indicates the service is unavailable' do
-          get v0_backend_status_url('gibs'), params: nil, headers: auth_header
-          json = JSON.parse(response.body)
-
-          expect(json['data']['attributes']['is_available']).to eq(false)
-          expect(json['data']['attributes']['name']).to be_a(String).and eq('gibs')
-        end
-
-        it 'returns 0 as number of seconds until next downtime' do
-          get v0_backend_status_url('gibs'), params: nil, headers: auth_header
-          json = JSON.parse(response.body)
-          expect(json['data']['attributes']['uptime_remaining']).to be_a(Integer).and eq(0)
-        end
-      end
-
-      context 'during online hours on weekday' do
-        before { Timecop.freeze(online_weekday) }
-
-        after { Timecop.return }
-
-        it 'indicates the service is available' do
-          get v0_backend_status_url('gibs'), params: nil, headers: auth_header
-          json = JSON.parse(response.body)
-          expect(json['data']['attributes']['is_available']).to eq(true)
-          expect(json['data']['attributes']['name']).to be_a(String).and eq('gibs')
-        end
-
-        it 'returns number of seconds until next downtime' do
-          get v0_backend_status_url('gibs'), params: nil, headers: auth_header
-          json = JSON.parse(response.body)
-          expect(json['data']['attributes']['uptime_remaining']).to be_a(Integer).and eq(57_600)
-        end
-      end
-    end
-
-    context 'for non-gibs service' do
-      it 'always indicates the service is available' do
-        get v0_backend_status_url('hca'), params: nil, headers: auth_header
-        json = JSON.parse(response.body)
-        expect(json['data']['attributes']['is_available']).to eq(true)
-        expect(json['data']['attributes']['name']).to be_a(String).and eq('hca')
-      end
-
-      it 'always returns 0 as number of seconds until next downtime' do
-        get v0_backend_status_url('hca'), params: nil, headers: auth_header
-        json = JSON.parse(response.body)
-        expect(json['data']['attributes']['uptime_remaining']).to be_a(Integer).and eq(0)
-      end
-    end
-  end
-
   describe 'GET /v0/backend_statuses' do
     before { sign_in_as(user) }
 
diff --git a/spec/requests/v1/post911_gi_bill_status_spec.rb b/spec/requests/v1/post911_gi_bill_status_spec.rb
index 0bacd87bf1b..9ede14d2a48 100644
--- a/spec/requests/v1/post911_gi_bill_status_spec.rb
+++ b/spec/requests/v1/post911_gi_bill_status_spec.rb
@@ -5,9 +5,6 @@
 RSpec.describe 'V1::Post911GIBillStatus', type: :request do
   include SchemaMatchers
 
-  let(:tz) { ActiveSupport::TimeZone.new(BenefitsEducation::Service::OPERATING_ZONE) }
-  let(:noon) { tz.parse('1st Feb 2018 12:00:00') }
-  let(:midnight) { tz.parse('15th Mar 2018 00:00:00') }
   let(:user) { create(:user, icn: '1012667145V762142') }
 
   before do
@@ -15,48 +12,16 @@
     allow(Settings.evss).to receive(:mock_gi_bill_status).and_return(false)
   end
 
-  # TO-DO: Rename context after transition of LTS to 24/7 availability
-  context 'inside working hours' do
-    before { Timecop.freeze(noon) }
-
-    after { Timecop.return }
-
-    context 'with a 200 response' do
-      it 'GET /v1/post911_gi_bill_status returns proper json' do
-        VCR.use_cassette('lighthouse/benefits_education/gi_bill_status/200_response') do
-          get v1_post911_gi_bill_status_url, params: nil
-          expect(response).to match_response_schema('post911_gi_bill_status')
-          assert_response :success
-        end
+  context 'with a 200 response' do
+    it 'GET /v1/post911_gi_bill_status returns proper json' do
+      VCR.use_cassette('lighthouse/benefits_education/gi_bill_status/200_response') do
+        get v1_post911_gi_bill_status_url, params: nil
+        expect(response).to match_response_schema('post911_gi_bill_status')
+        assert_response :success
       end
     end
   end
 
-  # TO-DO: Remove context after transition of LTS to 24/7 availability
-  context 'outside working hours' do
-    before do
-      Flipper.disable(:sob_updated_design)
-      Timecop.freeze(midnight)
-    end
-
-    after { Timecop.return }
-
-    it 'returns 503' do
-      get v1_post911_gi_bill_status_url, params: nil
-      expect(response).to have_http_status(:service_unavailable)
-    end
-
-    it 'includes a Retry-After header' do
-      get v1_post911_gi_bill_status_url, params: nil
-      expect(response.headers).to include('Retry-After')
-    end
-
-    it 'ignores OutsideWorkingHours exception' do
-      expect(Sentry).not_to receive(:capture_message)
-      get v1_post911_gi_bill_status_url, params: nil
-    end
-  end
-
   context 'with deprecated GibsNotFoundUser class' do
     it 'loads the class for coverage', skip: 'No expectation in this example' do
       GibsNotFoundUser
diff --git a/spec/serializers/backend_status_serializer_spec.rb b/spec/serializers/backend_status_serializer_spec.rb
deleted file mode 100644
index 412f07f66b9..00000000000
--- a/spec/serializers/backend_status_serializer_spec.rb
+++ /dev/null
@@ -1,31 +0,0 @@
-# frozen_string_literal: true
-
-require 'rails_helper'
-
-describe BackendStatusSerializer do
-  subject { serialize(backend_status, serializer_class: described_class) }
-
-  let(:backend_status) { build_stubbed(:backend_status) }
-  let(:data) { JSON.parse(subject)['data'] }
-  let(:attributes) { data['attributes'] }
-
-  it 'includes :id' do
-    expect(data['id']).to be_blank
-  end
-
-  it 'includes :name' do
-    expect(attributes['name']).to eq backend_status.name
-  end
-
-  it 'includes :service_id' do
-    expect(attributes['service_id']).to eq backend_status.service_id
-  end
-
-  it 'includes :is_available' do
-    expect(attributes['is_available']).to eq backend_status.available?
-  end
-
-  it 'includes :uptime_remaining' do
-    expect(attributes['uptime_remaining']).to eq backend_status.uptime_remaining
-  end
-end