49 C.F.R. § 1544.209 Use of metal detection devices.
Title 49 - Transportation
(a) No aircraft operator may use a metal detection device within the United States or under the aircraft operator's operational control outside the United States to inspect persons, unless specifically authorized under a security program under this part. No aircraft operator may use such a device contrary to its security program. (b) Metal detection devices must meet the calibration standards established by TSA.
Title 49: Transportation
PART 1544—AIRCRAFT OPERATOR SECURITY: AIR CARRIERS AND COMMERCIAL OPERATORS
Subpart C—Operations
§ 1544.209 Use of metal detection devices.