After a thorough internal review and consultation with the Stock/Super Stock Sportsman Racing Advisory Council, the NHRA Technical Department has decided to amend the rule regarding the notching of bumper covers in all categories of Stock and Super Stock. The following paragraph will now pertain to all categories of Stock and Super Stock.

Rear bumper cover only (i.e., not the bumper) may be notched or slotted for clearance around wheelie bars. Opening maximum is to allow for wheelie-bar movement only. Removal of rear bumper cover or trimming rear bumper cover the full width of wheelie bar prohibited.

The most recent version of the 2013 NHRA Rulebook Amendments, including this change, can be found at NHRARacer.com.