; and (B) a period of not more than 14 days after the conclusion of their authorized employment for the purpose of departure from the United States or a period of not more than 30 days following the employment for the purpose of seeking a subsequent offer of employment by an employer pursuant to a petition under this section (or pursuant to at-will employment under section 218B during such times as that section is in effect) if they have not reached their maximum continuous period of authorized employment under subsection (n) (subject to the exceptions in subsection (n)(3)) unless they accept subsequent offers of employment as H–2C workers or are otherwise lawfully present. (2) Failure to depart H–2C workers who do not depart the United States within the periods referred to in paragraph (1) will be considered to have failed to maintain nonimmigrant status as H–2C workers and shall be subject to removal under section 237(a)(1)(C)(i). Such aliens shall be considered to be inadmissible pursuant to section 212(a)(9)(B)(i) for having been unlawfully present, with the aliens considered to have been unlawfully present for 181 days as of the 15th day following their period of employment for the purpose of departure or as of the 31st day following their period of employment for the purpose of seeking subsequent offers of employment. (p) Abandonment of employment (1) Report by employer Not later than 72 hours after an employer learns of the abandonment of employment by H–2C workers before the conclusion of their work contracts, the employer shall notify the Secretary of Agriculture and the Secretary of Homeland Security of such abandonment. (2) Replacement of aliens An employer may designate eligible aliens to replace H–2C workers who abandon employment notwithstanding the numerical limitation found in section 214(g)(1)(C). (q) Change to H–2C status (1) In general An alien described in paragraph (4) is eligible for status as an H–2C worker despite their unlawful presence. (2) Waiver In the case of an alien described in