10 CFR 39.71 - Security.

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§ 39.71 Security.
(a) A logging supervisor must be physically present at a temporary jobsite whenever licensed materials are being handled or are not stored and locked in a vehicle or storage place. The logging supervisor may leave the jobsite in order to obtain assistance if a source becomes lodged in a well.
(b) During well logging, except when radiation sources are below ground or in shipping or storage containers, the logging supervisor or other individual designated by the logging supervisor shall maintain direct surveillance of the operation to prevent unauthorized entry into a restricted area, as defined in § 20.1003 of this chapter.
[52 FR8234, Mar. 17, 1987, as amended at 63 FR 39483, July 23, 1998]

Title 10 published on 2014-01-01

no entries appear in the Federal Register after this date.