diff --git a/app/controllers/start_controller.rb b/app/controllers/start_controller.rb
index bc89cd7f8..64173d11a 100644
--- a/app/controllers/start_controller.rb
+++ b/app/controllers/start_controller.rb
@@ -67,7 +67,8 @@ class StartController < ApplicationController
 private
 
   def download_resource(file, filename)
-    url = "https://#{Rails.application.config.collection_resources_s3_bucket_name}.s3.amazonaws.com/#{file}"
+    storage_service = Storage::S3Service.new(Configuration::EnvConfigurationService.new, ENV["COLLECTION_RESOURCES_BUCKET"])
+    url = "https://#{storage_service.configuration.bucket_name}.s3.amazonaws.com/#{file}"
     uri = URI.parse(url)
 
     response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
diff --git a/app/helpers/collection_resources_helper.rb b/app/helpers/collection_resources_helper.rb
index 797fda2e1..c5941dbc4 100644
--- a/app/helpers/collection_resources_helper.rb
+++ b/app/helpers/collection_resources_helper.rb
@@ -11,7 +11,8 @@ module CollectionResourcesHelper
 
   def file_type_size_and_pages(file, number_of_pages: nil)
     file_pages = number_of_pages ? pluralize(number_of_pages, "page") : nil
-    url = "https://#{Rails.application.config.collection_resources_s3_bucket_name}.s3.amazonaws.com/#{file}"
+    storage_service = Storage::S3Service.new(Configuration::EnvConfigurationService.new, ENV["COLLECTION_RESOURCES_BUCKET"])
+    url = "https://#{storage_service.configuration.bucket_name}.s3.amazonaws.com/#{file}"
     uri = URI.parse(url)
 
     response = Net::HTTP.start(uri.host, uri.port, use_ssl: uri.scheme == "https") do |http|
diff --git a/config/environments/development.rb b/config/environments/development.rb
index ebdedc474..7e1890b02 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -85,5 +85,4 @@ Rails.application.configure do
   config.active_record.yaml_column_permitted_classes = [Time, BigDecimal]
 
   config.active_job.queue_adapter = :inline
-  config.collection_resources_s3_bucket_name = "core-dev-collection-resources"
 end
diff --git a/config/environments/production.rb b/config/environments/production.rb
index 5bcd011fc..55f442b3d 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -147,5 +147,4 @@ Rails.application.configure do
       end
     }
   end
-  config.collection_resources_s3_bucket_name = "core-prod-collection-resources"
 end
diff --git a/config/environments/review.rb b/config/environments/review.rb
index e970cac70..f7438fdb6 100644
--- a/config/environments/review.rb
+++ b/config/environments/review.rb
@@ -127,5 +127,4 @@ Rails.application.configure do
 
   # see https://discuss.rubyonrails.org/t/cve-2022-32224-possible-rce-escalation-bug-with-serialized-columns-in-active-record/81017
   config.active_record.yaml_column_permitted_classes = [Time, BigDecimal]
-  config.collection_resources_s3_bucket_name = "core-dev-collection-resources"
 end
diff --git a/config/environments/staging.rb b/config/environments/staging.rb
index 941b3e0e0..56352d3bb 100644
--- a/config/environments/staging.rb
+++ b/config/environments/staging.rb
@@ -127,5 +127,4 @@ Rails.application.configure do
 
   # see https://discuss.rubyonrails.org/t/cve-2022-32224-possible-rce-escalation-bug-with-serialized-columns-in-active-record/81017
   config.active_record.yaml_column_permitted_classes = [Time, BigDecimal]
-  config.collection_resources_s3_bucket_name = "core-staging-collection-resources"
 end
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 4c90378a6..aa3fe7bba 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -67,5 +67,4 @@ Rails.application.configure do
   config.active_record.yaml_column_permitted_classes = [Time, BigDecimal]
 
   config.active_job.queue_adapter = :test
-  config.collection_resources_s3_bucket_name = "core-test-collection-resources"
 end
diff --git a/spec/helpers/collection_resources_helper_spec.rb b/spec/helpers/collection_resources_helper_spec.rb
index 9ad0802f7..5a07dcb66 100644
--- a/spec/helpers/collection_resources_helper_spec.rb
+++ b/spec/helpers/collection_resources_helper_spec.rb
@@ -3,6 +3,12 @@ require "rails_helper"
 RSpec.describe CollectionResourcesHelper do
   let(:current_user) { create(:user, :data_coordinator) }
   let(:user) { create(:user, :data_coordinator) }
+  let(:storage_service) { instance_double(Storage::S3Service) }
+
+  before do
+    allow(Storage::S3Service).to receive(:new).and_return(storage_service)
+    allow(storage_service).to receive(:configuration).and_return(OpenStruct.new(bucket_name: "core-test-collection-resources"))
+  end
 
   describe "when displaying file metadata" do
     context "with pages" do