As WPI reported on 6 December, the Treasury Department had promised that the compliance regulations for the 45Z Clean Fuels Production credit would be released by the end of the Biden Administration, implying no later than 19 January, the day before President-elect Trump’s inauguration.  Throughout most of this week, the market has been expecting the announcement to happen today, though there were some questions if that would happen given that the federal government was closed yesterday for a National Day of Mourning for former President Jimmy Carter.  In line with expectations, the guidance was issued today. The guidance issued by Treasury, however, was a notice for proposed rulemaking (NPR) which means it is not the final g...