law, a monetary allowance paid an individual under this chapter shall not be considered as income or resources in determining eligibility for, or the amount of benefits under, any Federal or federally assisted program. 1836. Nonduplication of benefits (a) Monetary allowance In the case of an eligible descendant under subchapter II of this chapter whose only covered birth defect is spina bifida, a monetary allowance shall be paid under subchapter I of this chapter. In the case of an eligible descendant under subchapter II of this chapter who has spina bifida and one or more additional covered birth defects, a monetary allowance shall be paid under subchapter II of this chapter. (b) Vocational training An individual may only be provided one program of vocational training under this chapter. . (b) Conforming amendments Such title is further amended— (1) in section 5312, by striking 1805 both places it appears and inserting 1814