The SFl Program - Self-Regulation by Custom Wheel Manufacturers

In order to establish uniform industry standards for custom aftermarket wheels, manufacturers of these wheels have joined together to develop guidelines for wheel design, testing, and manufacturing. The organization is named SEMA Foundation, Incorporated, (SFI) and the specifications cover both steel and aluminum automobile and light truck wheels.

The specifications include requirements for (1) wheel identification marking, (2) design qualification, (3) periodic design requalification, (4) quality control procedures, (5) independent plant audits, and (6) identification of qualified products.