No accusump or dry sump tanks in passenger compartment has been a rule for as long as I can remeber. Here is the rule in general regulations from NHRA rulebook

1:9 OIL SYSTEM
Accu-sump, dry-sump tanks, oil filters, oil supply lines, etc.
prohibited in driver compartment and outside of frame and/or
steel body/fenders, except as noted in Top Fuel. Oil-pressure
gauge and line permitted in driver compartment, metal or steel
braided line mandatory, maximum 3/16-inch inside diameter.
Power-enhancing additives prohibited

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"