Their baseline mitigation scenario was a phaseout of global coal emissions by 2050. Obrigheim operated until 2005, where it was shutdown by phaseout decision of the government. Inactivated in 1983 as part of the phaseout of the B-52G from the SAC inventory. The board recommended the phaseout of buses not meeting the federal standards established in 1977. The wing was inactivated in 1964 with the phaseout of the B-47. See NOAA's statement on the 121.5/243 phaseout. The phaseout of both chlorpyrifos and diazinon for most residential uses was complete in 2005. However, Chinese production grew after 3M's phaseout.