; and (III) not later than 72 hours after termination, notify the Secretary of Agriculture of such termination and stating the nature of the contract impossibility. (k) Nondelegation The Department of Agriculture and the Department of Homeland Security shall not delegate their investigatory, enforcement, or administrative functions relating to this section or section 218B to other agencies or departments of the Federal Government. (l) Compliance with bio-Security protocols Except in the case of an imminent threat to health or safety, any personnel from a Federal agency or Federal grantee seeking to determine the compliance of an employer with the requirements of this section or section 218B shall, when visiting such employer’s place of employment, make their presence known to the employer and sign-in in accordance with reasonable bio-security protocols before proceeding to any other area of the place of employment. (m) Limitation on H–2C workers’ stay in status (1) Maximum period The maximum continuous period of authorized stay as an H–2C worker (including any extensions) is 36 months. (2) Requirement to remain outside the united states In the case of H–2C workers whose maximum continuous period of authorized status as H–2C workers (including any extensions) have expired, the aliens may not again be eligible to be H–2C workers until they remain outside the United States for a continuous period equal to at least the lesser of 1⁄12 of the duration of their previous period of authorized status an H–2C workers or 60 days. (3) Exceptions (A) The Secretary of Homeland Security shall deduct absences from the United States that take place during an H–2C worker’s period of authorized status from the period that the alien is required to remain outside the United States under paragraph (2), if the alien or the alien’s employer requests such a deduction, and provides clear and convincing proof that the alien qualifies for such a deduction. Such proof shall consist of evidence such as arrival and departure records, copies of