Title IV, SEC. 4035. REQUIREMENTS FOR CHANGES IN BILLING PROCEDURES. (a) Limitation on Frequency of System Changes. The Secretary of Health and Human Services may not implement any change in the system used for the billing and processing of claims for payment for items and services furnished under title XVIII of the Social Security Act within 6 months of implementing any previous change in such system. (b) Advance Notification to Providers as Requirement for Carriers and Fiscal Intermediaries. (1) Fiscal intermediaries. Section 1816(c) (42 U.S.C. 1395h(c)) is amended by adding at the end the following new paragraph: ``(4) Each agreement with an agency or organization under this section shall provide that the agency or organization shall notify providers of services of any major change in the procedures for billing for services furnished under this part at least 120 days before such change is to take effect.''. (2) Carriers. Section 1842(b)(3) (42 U.S.C. 1395u(b)(3)) is amended (A) by striking ``and'' at the end of subparagraph (G) and the end of subparagraph (H); and (B) by inserting after subparagraph (H) the following new subparagraph: ``(I) will notify individuals and entities furnishing items and services for which payment may be made under this part of any major change in the procedures for billing for such items and services at least 120 days before such change is to take effect; and''. (3) Effective date. The amendments made by paragraphs (1) and (2) shall apply to agreements with fiscal intermediaries under section 1816 of the Social Security Act and to contracts with carriers under section 1842 of such Act for years beginning after the expiration of the 9-month period beginning on the date of the enactment of this Act.