diff --git a/.travis.yml b/.travis.yml
index cd4d07c..b616c2e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,8 @@
 language: ruby
 rvm:
 - 2.5.3
+services:
+  - mysql
 branches:
   only:
     - master
diff --git a/Gemfile b/Gemfile
index 95a428a..d073c6f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -14,7 +14,7 @@ gem 'active_record-acts_as', git: 'https://github.com/camsys/active_record-acts_
 
 # To use debugger
 # gem 'debugger'
-gem 'transam_core', git: 'https://github.com/camsys/transam_core', branch: :quarter1
+gem 'transam_core', git: 'https://github.com/camsys/transam_core', branch: :quarter2
 gem 'mysql2', "~> 0.5.1" # lock gem for dummy app
 gem "capybara", '2.6.2' # lock gem for old capybara behavior on hidden element xpath
 gem 'sass-rails'
diff --git a/app/controllers/audit_results_controller.rb b/app/controllers/audit_results_controller.rb
index 1eeca22..9c2c32c 100644
--- a/app/controllers/audit_results_controller.rb
+++ b/app/controllers/audit_results_controller.rb
@@ -17,6 +17,7 @@ def index
     # Get the list of audit types for this organization
     # @types = AuditResult.where(:organization_id => @organization_list).pluck(:class_name).uniq
     @filterables = AuditResult.where(:organization_id => @organization_list).distinct.pluck(:filterable_type, :filterable_id)
+    @filterables = [[nil,nil]] if @filterables.empty? # make sure there is an array even if no results
 
     conditions = Hash.new
 
diff --git a/app/models/asset_auditor.rb b/app/models/asset_auditor.rb
index 774eb2d..8d8ad42 100644
--- a/app/models/asset_auditor.rb
+++ b/app/models/asset_auditor.rb
@@ -10,26 +10,9 @@ class AssetAuditor < AbstractAuditor
   # Only run audit if asset has changes related to audit
   #-----------------------------------------------------------------------------
   def detect_changes? asset
-    has_changes = false
-
-    asset_fields_audited = [
-        :reported_condition_date,
-        :reported_condition_type_id,
-        :reported_condition_rating,
-        :service_status_date,
-        :service_status_type_id,
-        :reported_mileage,
-        :reported_mileage_date
-    ]
-
-    asset_fields_audited.each do |field|
-      if asset.changes.include? field.to_s
-        has_changes = true
-        break
-      end
-    end
 
-    has_changes
+    # check if in service date is before audit period but otherwise assume changes as asset events trigger audit through TransamSubAuditable
+    asset.in_service_date <= context.end_date
   end
 
   #-----------------------------------------------------------------------------
diff --git a/app/models/concerns/transam_auditable.rb b/app/models/concerns/transam_auditable.rb
index 2140079..3fea710 100644
--- a/app/models/concerns/transam_auditable.rb
+++ b/app/models/concerns/transam_auditable.rb
@@ -62,16 +62,11 @@ def audits
     Audit.active.where(:id => audit_results.pluck(:audit_id).uniq)
   end
 
-  #-----------------------------------------------------------------------------
-  # Protected Methods
-  #-----------------------------------------------------------------------------
-  protected
-
   def check_for_audit_changes
     Rails.logger.debug "checking for audit changes"
     audit_changed = false
     audits.each do |audit|
-      if self.in_service_date <= audit.end_date && audit.operational? and audit.auditor.detect_changes? self
+      if audit.operational? and audit.auditor.detect_changes? self
         audit_changed = true
         break
       end
diff --git a/app/models/concerns/transam_sub_auditable.rb b/app/models/concerns/transam_sub_auditable.rb
new file mode 100644
index 0000000..45ea78f
--- /dev/null
+++ b/app/models/concerns/transam_sub_auditable.rb
@@ -0,0 +1,45 @@
+module TransamSubAuditable
+  #-----------------------------------------------------------------------------
+  #
+  # TransamSubAuditable
+  #
+  # If an association needs to trigger the audit, insert this mixin so parent auditable runs auditable callbacks
+  #
+  #-----------------------------------------------------------------------------
+  extend ActiveSupport::Concern
+
+  included do
+    after_save :force_save_parent_asset
+    after_destroy :force_save_parent_asset
+  end
+
+  #-----------------------------------------------------------------------------
+  # Class Methods
+  #-----------------------------------------------------------------------------
+
+  module ClassMethods
+
+  end
+
+  #-----------------------------------------------------------------------------
+  # Instance Methods
+  #-----------------------------------------------------------------------------
+
+
+
+
+  #-----------------------------------------------------------------------------
+  # Protected Methods
+  #-----------------------------------------------------------------------------
+  protected
+
+  def force_save_parent_asset
+    # find parent
+    parent_class_name = SystemConfigExtension.find_by(extension_name: 'TransamAuditable').class_name
+
+    parent = self.send(parent_class_name.underscore)
+    parent.check_for_audit_changes
+    parent.update_audits
+  end
+
+end
diff --git a/app/views/audit_results/_index_asset_table.html.haml b/app/views/audit_results/_index_asset_table.html.haml
index 6642c1d..c71964b 100644
--- a/app/views/audit_results/_index_asset_table.html.haml
+++ b/app/views/audit_results/_index_asset_table.html.haml
@@ -4,8 +4,8 @@
 .table-responsive
   %table.table.table-hover{:id => 'audit_results_table', :data => {:toggle => 'table',
     :pagination => 'true',
-    :show_pagination_switch => 'true',
-    :page_list => "[5, 10, 20, 50, 100, 200]",
+    :show_pagination_switch => 'false',
+    :page_list => "[5, 10, 20, 50, 100, 200, 10000]",
     :page_size => current_user.num_table_rows,
     :search => 'false',
     :toolbar => "#table_actions",
diff --git a/app/views/audit_results/_index_table.html.haml b/app/views/audit_results/_index_table.html.haml
index 2686930..680a0e3 100644
--- a/app/views/audit_results/_index_table.html.haml
+++ b/app/views/audit_results/_index_table.html.haml
@@ -4,8 +4,8 @@
 .table-responsive
   %table.table.table-hover{:id => 'audit_results_table', :data => {:toggle => 'table',
     :pagination => 'true',
-    :show_pagination_switch => 'true',
-    :page_list => "[5, 10, 20, 50, 100, 200]",
+    :show_pagination_switch => 'false',
+    :page_list => "[5, 10, 20, 50, 100, 200, 10000]",
     :page_size => current_user.num_table_rows,
     :search => 'false',
     :toolbar => "#table_actions",
diff --git a/app/views/audits/_index_table.html.haml b/app/views/audits/_index_table.html.haml
index 6eeb40d..0108ec8 100644
--- a/app/views/audits/_index_table.html.haml
+++ b/app/views/audits/_index_table.html.haml
@@ -4,8 +4,8 @@
 .table-responsive
   %table.table.table-hover{:id => table_dom_id, :data => {:toggle => 'table',
     :pagination => 'true',
-    :show_pagination_switch => 'true',
-    :page_list => "[5, 10, 20, 50, 100, 200]",
+    :show_pagination_switch => 'false',
+    :page_list => "[5, 10, 20, 50, 100, 200, 10000]",
     :page_size => current_user.num_table_rows,
     :search => 'false',
     :toolbar => "#table_actions",
diff --git a/db/data_migrations/20190313123702_add_sub_auditable_extension_asset_events.rb b/db/data_migrations/20190313123702_add_sub_auditable_extension_asset_events.rb
new file mode 100644
index 0000000..ab61e8f
--- /dev/null
+++ b/db/data_migrations/20190313123702_add_sub_auditable_extension_asset_events.rb
@@ -0,0 +1,15 @@
+class AddSubAuditableExtensionAssetEvents < ActiveRecord::DataMigration
+  def up
+    system_config_extensions = [{engine_name: 'audit', class_name: 'ConditionUpdateEvent', extension_name: 'TransamSubAuditable', active: true},
+        {engine_name: 'audit', class_name: 'ServiceStatusUpdateEvent', extension_name: 'TransamSubAuditable', active: true}
+    ]
+
+    if SystemConfig.transam_module_loaded? :transit
+      system_config_extensions << {engine_name: 'audit', class_name: 'MileageUpdateEvent', extension_name: 'TransamSubAuditable', active: true}
+    end
+
+    system_config_extensions.each do |ext|
+      SystemConfigExtension.create!(ext)
+    end
+  end
+end
\ No newline at end of file
diff --git a/db/seeds.rb b/db/seeds.rb
index 5d52ec5..dd39fc2 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -30,9 +30,15 @@
 
 # currently add auditable mixin to old assets as well
 system_config_extensions = [
-    {engine_name: 'audit', class_name: 'TransamAsset', extension_name: 'TransamAuditable', active: true}
+    {engine_name: 'audit', class_name: 'TransamAsset', extension_name: 'TransamAuditable', active: true},
+    {engine_name: 'audit', class_name: 'ConditionUpdateEvent', extension_name: 'TransamSubAuditable', active: true},
+    {engine_name: 'audit', class_name: 'ServiceStatusUpdateEvent', extension_name: 'TransamSubAuditable', active: true}
 ]
 
+if SystemConfig.transam_module_loaded? :transit
+  system_config_extensions << {engine_name: 'audit', class_name: 'MileageUpdateEvent', extension_name: 'TransamSubAuditable', active: true}
+end
+
 lookup_tables = %w{ audit_result_types }
 
 lookup_tables.each do |table_name|
diff --git a/lib/transam_audit/version.rb b/lib/transam_audit/version.rb
index 988c3ae..da9612a 100644
--- a/lib/transam_audit/version.rb
+++ b/lib/transam_audit/version.rb
@@ -1,3 +1,3 @@
 module TransamAudit
-  VERSION = "2.5.0"
+  VERSION = "2.6.0"
 end
diff --git a/spec/dummy/config/database.travis.yml b/spec/dummy/config/database.travis.yml
index 97652f5..4b95acb 100644
--- a/spec/dummy/config/database.travis.yml
+++ b/spec/dummy/config/database.travis.yml
@@ -6,6 +6,8 @@
 
 mysql: &mysql
   adapter: mysql2
+  variables:
+          sql_mode: traditional
   username: root
   password:
   database: transam_audit_testing
diff --git a/spec/dummy/config/environments/production.rb b/spec/dummy/config/environments/production.rb
index 7238677..8527a98 100644
--- a/spec/dummy/config/environments/production.rb
+++ b/spec/dummy/config/environments/production.rb
@@ -23,7 +23,7 @@
   config.serve_static_files = false
 
   # Compress JavaScripts and CSS.
-  config.assets.js_compressor = :uglifier
+  config.assets.js_compressor = Uglifier.new(harmony: true) if defined? Uglifier
   # config.assets.css_compressor = :sass
 
   # Do not fallback to assets pipeline if a precompiled asset is missed.