8 C.F.R. § 1270.2
(e) Contents of the Notice of Intent to Fine.
(2) The Notice of Intent to Fine shall provide the following advisals to the respondent:
(iii) When applicable, pursuant to § 103.5a(a)(2) of 8 CFR chapter I.
Service is effective upon receipt of the final order. Proof of service may be made as prescribed by the law of the foreign country, or, when service is pursuant to § 103.5a(a)(2) of 8 CFR chapter I, as evidenced by the certificate of service or the certified mail return receipt.