§ 52.2723 EPA-approved Puerto Rico regulations and laws.  


Latest version.

[62 FR 3213, Jan. 22, 1997; 62 FR 6619, Feb. 12, 1997, as amended at 75 FR 1546, Jan. 12, 2010; 77 FR 16679, Mar. 22, 2012; 77 FR 52235, Aug. 29, 2012; 81 FR 62816, Sept. 13, 2016