Throughout this rulebook, several references are made for products to meet certain specifications (i.e., SFI Specs, Snell, DOT, etc.). It is important to realize that these products are manufactured to meet certain specifications, and upon completion, the manufacturer labels the product as meetings that spec. Therefore, excerpt as outlined under SFI requirements, any change to the product voids certification.
Under no circumstances may any certified product be modified, altered, or in any way vary from the "as manufactured: condition. Such a practice is in violation of the SFI, Snell, DOT, etc. program, voids such certification and therefore will not be accepted by NHRA and/or NHRDA.
Notice: It is the responsibility of the participant, not NHRDA, NHRA or any track, to ensure that all safety equipment is not modified or altered, is approved, and correctly installed, worn, maintained and used properly.
In no way are these rules intended to supersede or replace the current NHRA and/or Track Rules.