Rules and Reg's
correct me if I am wrong

Elapsed Time (ET) of 13.50 seconds or slower:

• Snell 95 (or newer) helmet mandatory for entries running 13.99 or faster.

Recommended for entries running 14.00 or slower.

• Full hood
• Driveshaft loop if equipped with slicks
• Battery hold-down
• Radiator overflow can
• Seat belts
• Neutral safety switch mandatory for all vehicles with an automatic transmission.  If a manual transmission vehicle was originally provided by the manufacturer with a clutch interlock switch it must remain operational.
• Arm restraints required on open body entries.
• Check current IHRA Rule Book for additional requirements and specifications.

Elapsed Time (ET) of 11.50 – 13.49:

• Snell 95 (or newer) helmet
• Full hood
• Driveshaft loop if equipped with slicks
• Battery hold-down
• Radiator overflow can
• Seat belts
• Roll Bar or Roll Cage for convertibles – recommended for all others.
• Window Net (vehicles equipped with a Roll Cage only)
• Transmission shield / blanket meeting SFI Specification 4.1 if the vehicle uses a modified transmission or special converter.
• Neutral safety switch mandatory for all vehicles with an automatic transmission.  If a manual transmission vehicle was originally provided by the manufacturer with a clutch interlock switch it must remain operational.
• Reverse lockout mandatory.
• Arm restraints required on open body entries.
• Check current IHRA Rule Book for additional requirements and specifications.

Elapsed Time (ET) of 10.00 – 11.49:

• Snell 95 (or newer) helmet
• Hood is optional
• Driveshaft loop if equipped with slicks
• Battery hold-down
• Radiator overflow can
• Seat belts meeting SFI Specification 16.1 within 2 years expiration from date of manufacture.
• Harmonic Balancer meeting SFI 18.1 Specification (10.99 or quicker)
• Properly secured fire extinguisher
• Aftermarket axles and axle retention devices (10.99 or quicker)
• Roll Bar
• Window Net (vehicles equipped with a Roll Cage only)
• Transmission shield / blanket meeting SFI Specification 4.1 if the vehicle uses a modified transmission or special converter.
• Neutral safety switch mandatory for all vehicles with an automatic transmission.  If a manual transmission vehicle was originally provided by the manufacturer with a clutch interlock switch it must remain operational
• Flywheel shield meeting SFI Specification 6.3 on vehicles using multi-disc type clutches.
• Flywheel, clutch, pressure plate and flywheel shield meeting SFI 1.1 Specifications required on all cars using a clutch.
• Jacket meeting SFI 3.2A-1 Specifications.
• Arm Restraints required on all open bodied cars
• Screw-in valve stems
• Check current IHRA Rule Book for additional requirements and specifications.

Elapsed Time (ET) of 7.00 – 9.99:

IHRA Class B Competition License required for all drivers running an ET of 0.00 – 7.99 seconds, an IHRA Class C Competition License when running 8.00 – 8.99 seconds or an IHRA Class D Competition License when running 9.00 – 9.99 seconds.

• Driveshaft loop if equipped with slicks
• Fire system (8.49 or quicker)
• Flywheel shield mandatory (8.49 or quicker)
• Harmonic Balancer meeting SFI 18.1 Specifications
• Snell 95 (or newer) helmet
• Parachute required for all cars running over 150 MPH
• Two parachutes required for all cars running over 200 MPH
• Jacket meeting SFI 3.2A-5 Specifications
• Jacket and pants for all cars running 8.49 seconds or faster which must meet SFI 3.2A-5 Specifications.
• Roll cage mandatory for all cars running 9.99 seconds or quicker.
• Chassis Certification mandatory for all entries running 9.00 seconds or quicker.
• Seat belt meeting SFI 16.1 specifications within 2-year expiration from date to manufacture.
• All vehicles running 8.99 or faster must use a diaper
• Flexplate meeting SFI29.1 specifications
• Flexplate shield meeting SFI 30.1 specifications
• SFI 4.1 transmission blanket
• Supercharger strap meeting SFI 14.1 specifications
• Neck collar meeting SFI 3.3 specifications (8.49 or quicker)
• Gloves meeting SFI 3.3/1 specifications (8.49 or quicker) on open bodied entries.
• Arm Restraints meeting SFI 3.3 specifications (9.99 or quicker) on open bodied entries.
• Check current IHRA Rule Book for additional requirements and specifications.