---
kind: "section"
citation: "42 C.F.R. § 71.31"
title: "42"
number: "71.31"
heading: "General provisions."
url: "https://uscodex.org/cfr/42/71.31"
---

# §71.31. General provisions.

- (a) Upon arrival at a U.S. port, a carrier will not undergo inspection unless the Director determines that a failure to inspect will present a threat of introduction of communicable diseases into the United States, as may exist when the carrier has on board individual(s) reportable in accordance with [§ 71.21](/cfr/42/71.21.md) or meets the circumstances described in [§ 71.42](/cfr/42/71.42.md). Carriers not subject to inspection under this section will be subject to sanitary inspection under [§ 71.41](/cfr/42/71.41.md) of this part.
- (b) The Director may require detention of a carrier until the completion of the measures outlined in this part that are necessary to prevent the introduction or spread of a communicable disease. The Director may issue a controlled free pratique to the carrier stipulating what measures are to be met, but such issuance does not prevent the periodic boarding of a carrier and the inspection of persons and records to verify that the conditions have been met for granting the pratique.

## Notes

### Authority

Authority: Secs. 215 and 311 of Public Health Service (PHS) Act. as amended (42 U.S.C. 216, 243); secs. 361-369, PHS Act, as amended (42 U.S.C. 264-272).

### Source

Source: 50 FR 1519, Jan. 11, 1985, unless otherwise noted.