The Type Approval Program (as described in Appendix 1-1-A3 of the ABS Rules for Conditions of Classification (Part 1)) may be applied to design evaluation and approval of piping components in 4-6-2/5.5 through 4-6-2/5.15. Each product approved under this program need not be subjected to further design review or a prototype test, or both, each time the product is proposed for use. The list of approved products will be posted on the ABS