California State Nonroad Engine Pollution Control Standards; In-Use Diesel-Fueled Transport Refrigeration Units (TRUs) and TRU Generator Sets and Facilities Where TRUs Operate; Request for Within-the-Scope and Full Authorization; Opportunity for Public Hearing and Comment

The California Air Resources Board (CARB) has notified the Environmental Protection Agency (EPA) that it has adopted amendments to its In-Use Diesel-Fueled Transport Refrigeration Units (TRUs) and TRU Generator Sets and Facilities Where TRUs Operate (together ``2011 TRU Amendments'') regulation. By letter dated March 2, 2015, CARB asked that EPA authorize these amendments pursuant to section 209(e) of the Clean Air Act. CARB seeks confirmation that certain 2011 TRU Amendments are within the scope of prior authorizations issued by EPA, or, in the alternative, that such amendments merit full authorization. CARB also seeks a full authorization for other 2011 TRU Amendments. This notice announces that EPA has tentatively scheduled a public hearing to consider California's authorization request for the 2011 TRU Amendments and that EPA is now accepting written comment on the request.