Notwithstanding any other provision of this chapter, the retirement allowance payable to any person who becomes a member on or after January 1, 1990, shall in no event exceed the limitation imposed by Section 415(b) of the Internal Revenue Code of 1986 as applied (other than paragraph (2)(G) without regard to paragraph (2)(F)). Section 415(b) is hereby incorporated by reference. (Ord. 5951-NS § 1, 1989)