Ok Rick I will take the bait.
ICSCC decided to follow SCCA's lead in changing the seat belt rule. ICSCC honors SCCA annual tech inspections so if the change wasn't made, ICSCC technically would have two different standards for seat belts.
In my research it appears all FIA and SFI belts are made from the same material. So why does FIA say the belts are good for 5 years and SFI says 2 years?
In speaking with the SFI Foundation, they have not changed their certification. However, the reason for SFI's 2 year certification instead of 5 years is because the seat belt material can deteriorate if left out in the sun over time. Since SFI does not know if drivers are going to leave their race cars outside unprotected from the sun over a long period of time, they are only willing to certify the belts for 2 years. It seems FIA is not as concerned about this problem as much as SFI .
SCCA made the change to allow SFI certified belts to expire in 5 years from year of manufacture with a few provisions which ICSCC will follow.
The belts need to be inspected each year for wear, fraying, grease, oil or sun damage before being approved to race.
So drivers, just because the seat belt passes the date test, does not mean it will pass the other inspections necessary to be approved for racing. Please do your own inspection prior to arriving at the race track and if you have any of the above issues with your belts, buy some new ones.