1.   These modules must contain a LIFESPAN module header and must SCAN successfully.

2.   Several example headers are provided in Appendix A and a syntactic description of a module header is given in Appendix B.

3.   The addition of a module header to a piece of software is the only requirement for storage in LIFESPAN.

4.   The module header can be identified by LIFESPAN in a very wide range of contexts.

5.   A module header provides information to LIFESPAN and to LIFESPAN users about the module of which it is part.

6.   Adding a module header to a file is the only step necessary to make its contents eligible for control by LIFESPAN.