Emergency Generators Now Regulated

Are you planning to install a new emergency generator or modify an existing emergency generator?  If so, you will likely need to comply with one or more of the following Federal emergency generator regulations:

• 40 CFR Part 60, Subpart IIII – Standards of Performance for Stationary Compression Ignition Internal Combustion Engines.

• 40 CFR Part 60, Subpart JJJJ – Standards of Performance for Stationary Spark Ignition Internal Combustion Engines.

• 40 CFR Part 63, Subpart ZZZZ – National Emissions Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines (RICE).

The applicable requirements of these regulations depend on a combination of engine specific parameters including model year, construction or reconstruction date, displacement (liters per cylinder), power rating (hp), and the classification of a facility as either a major or area source of hazardous air pollutants (HAPs).  Generally, these regulations enforce emission limits that must be confirmed with the engine manufacturer, require stack testing in limited cases, and set forth various monitoring, reporting, and recordkeeping requirements for emergency generators.  The Part 60 regulations enforce fuel oil sulfur limits that are generally lower than limits for existing boilers and emergency generators that could result in facility-wide transitions to lower sulfur diesel fuel (i.e., 0.05% by weight and less).

Be sure to check out next month’s 4 The Record to learn more, as we’ll provide a detailed review of these emergency generator regulations.