### Question
How does PUBLIC HEALTH SERVICE define effective period of the Declaration?


### Answer
Under *42 U.S.C. § 239*, **effective period of the Declaration** is defined as:

> the effective period specified in the Declaration, unless extended by the Secretary

#### Citation:
  - *42 U.S.C. § 239*
  - Heading: **CHAPTER 6A-PUBLIC HEALTH SERVICE > SUBCHAPTER I-ADMINISTRATION AND MISCELLANEOUS PROVISIONS > Part C-Smallpox Emergency Personnel Protection**

