IMPLEMENTATION GUIDANCE FOR USE OF A MODULAR OPEN SYSTEM APPROACH.

SEC. 840. IMPLEMENTATION GUIDANCE FOR USE OF A MODULAR OPEN SYSTEM APPROACH. (a) Guidance for Program Capabilities Development and Acquisition Weapon System Design.—Section 2446b of title 10, United States Code, is amended by adding at the end the following new subsection: “(f) Implementation Guidance.—The Secretaries of the military departments shall issue guidance to implement the requirements of this section.” . (b) Guidance for Major System Interfaces.—Section 2446c of title 10, United States Code, is amended— (1) in paragraph (4), by striking “and” at the end; (2) in paragraph (5), by striking the period at the end and adding “; and”; and (3) by adding at the end the following new paragraph: “(6) issue guidance to implement the requirements of this section.” .