Current Regulations: HB No. 1124 was signed by the Governor in February 2000; it includes a cap on MTBE in gasoline of two % by volume.
SB 161 was signed by the Governor in February 2001 and bans MTBE in gasoline. A de minimis amount (0.5 vol%) of MTBE is permitted; see SD Codified Laws 37-2-33.
In a multi-state letter dated 8/31/17, to address a fuel supply emergency caused by Hurricane Harvey, EPA allowed 11.5 psi RVP gasoline throughout the state through September 15.
Legislature: SB 121, introduced in January 2000, would require all gasoline after July 1, 2001 to contain at least 2.7 wt% oxygen content with some exemptions.
Two bills were introduced in February 2003. SB 194 would require all gasoline to contain a minimum of 2.7 wt% oxygen content after July 1, 2004. SB 203 would require all gasoline to contain 10 vol% ethanol after July 1, 2004.
Last updated September 2017