Editing Oklahoma City bombing (section)

===Drag racing===
The National Hot Rod Association has tightened its regulations for nitromethane.  Section 21 of the current NHRA rule book states nitromethane is limited to {{convert|400|lb|kg}}, or {{convert|42|gal|l}} in a barrel, instead of the normal {{convert|55|gal|l}}.  The NHRA requires competitors to submit a Top Screen Questionnaire to the [[Department of Homeland Security]].  In addition, competitors are not allowed to own nitromethane at official events.  Instead, it must be stored at the series' official fuel supplier, VP Racing Fuel (as of 2025).<ref>{{cite web |title=NHRA Rule Book (2024) |url=https://www.nhraracer.com/Files/Tech/2024%20NHRA%20Rulebook.pdf |website=NHRA Racer |publisher=National Hot Rod Association |access-date=2024-10-23 |archive-date=August 1, 2024 |archive-url=https://web.archive.org/web/20240801213655/https://www.nhraracer.com/Files/Tech/2024%20NHRA%20Rulebook.pdf |url-status=dead }}</ref>  Each time a team purchases nitromethane, it is logged by the Series fuel supplier, which dispenses the correct amount of nitromethane ordered to the specific team.<ref name="CompPlus-2020-04-20">{{Cite magazine |first=Thomas |last=Pope |date=April 20, 2020 |title=APRIL 19, 1995: A DAY DRAG RACING SHOULD NEVER FORGET  |url=https://competitionplus.com/drag-racing/news/april-19-1995-a-day-drag-racing-should-never-forget |access-date=2024-07-17 |magazine=CompetitionPlus |language=en}}</ref>