chutes/beadlocks/tubes-mph

cant find in the NHRA rulebook where the mph/et or class cut off is for needing dual chutes beadlocks or tubes in the tires.
Rick

 

from the ET SECTION PG 77...WHEELS N TIRES

sfi spec 15.1 rear wheels with beadlocks or liners mandatory on
any vehicle that runs 6.50 and quicker or 210 mph and faster.


dual chutes,..ET SECTION, PG.72..Prachutes

Required. cars running in access of 200mph must use dual parachutes, with
seperate shroud line mounting points, using sleeved 1/2 inch bolts, safty pins
must be red flagged an removed prior to burnout.

 

thanks didnt look in the et sect,just everywhere else.
ITS ALWAYS FOUND IN THE LAST PLACE YOU LOOK.