diff --git a/config/environments/development.rb b/config/environments/development.rb
index a72cf058cd..5e3a76153b 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -27,6 +27,8 @@ Rails.application.configure do
   # To override this, set the appropriate locale in .env[.*] file.
   config.time_zone = ENV.fetch("TIMEZONE", "UTC")
 
+  # Log level for dev server stdout and development.log file.
+  # Set the desired level in .env.development.local file.
   config.log_level = ENV.fetch("RAILS_LOG_LEVEL", :debug)
 
   # Enable/disable caching. By default caching is disabled.
diff --git a/config/environments/test.rb b/config/environments/test.rb
index 5012931362..4042f0a351 100644
--- a/config/environments/test.rb
+++ b/config/environments/test.rb
@@ -66,8 +66,8 @@ Rails.application.configure do
   # Tell Active Support which deprecation messages to disallow.
   config.active_support.disallowed_deprecation_warnings = []
 
-  # Change to reduce unecessary logging
-  config.log_level = ENV.fetch("RAILS_LOG_LEVEL", :debug)
+  # Reduced logging by default; set the desired level in .env.test.local file.
+  config.log_level = ENV.fetch("RAILS_LOG_LEVEL", :fatal)
 
   # Fail tests on deprecated code unless it's a known case to solve.
   Rails.application.deprecators.behavior = ->(message, callstack, deprecator) do