### Question
What does necessary mean?


### Answer
**Necessary** has the following meaning in *APPENDIX U.S.C. § 2098*:

> an integrated part of the project taking into account considerations of economy and efficiency of operation

#### Citation:
  - *APPENDIX U.S.C. § 2098*
  - Heading: **DEFENSE PRODUCTION ACT OF 1950 > ACT SEPT. 8, 1950, CH. 932, 64 STAT. 798 > TITLE III-EXPANSION OF PRODUCTIVE CAPACITY AND SUPPLY**

