[G E T Racin]

straight from this years rule book sec 7 page 2

OIL-RETENTION DEVICE
All vehicles must utilize an NHRA-accepted lower engine oilretention
device; may use a belly pan in lieu of a device attached to
the engine. If belly pan is used, must extend from framerail to
framerail and extend forward of the harmonic balancer and
rearward to rear-engine plate and must incorporate a minimum 2-
inch-high lip on all sides. A nonflammable, oil-absorbent liner
mandatory inside of retention device. See General Regulations 1:8.

don't get confused with the gen regs. the above rule is specifically for sst. all vehicles need a diaper no matter what et's or mph they run.

Your div director or tech guys should be able to answer any questions you have.

Hope this helps