§ 1065.735 Diesel exhaust fluid.
(a) Use commercially available diesel exhaust fluid that represents the product that will be used in your in-use engines.
(b) Diesel exhaust fluid for testing must generally conform to the specifications referenced in the definition of “diesel exhaust fluid” in § 1065.1001. Use marine-grade diesel exhaust fluid only for marine engines.
[81 FR 74191, Oct. 25, 2016]