8 CFR § 264.1 - Registration and fingerprinting.
(b) Evidence of registration. The following forms constitute evidence of registration:
In addition to the forms noted in this paragraph (b), a valid, unexpired nonimmigrant DHS admission or parole stamp in a foreign passport constitutes evidence of registration.
(c) Replacement of alien registration. Any alien whose registration document is not available for any reason must immediately apply for a replacement document in the manner prescribed by USCIS.
(d) Surrender of registration. If an alien is naturalized, dies, permanently departs, or is deported from the United States, or evidence of registration is found by a person other than the one to whom such evidence was issued, the person in possession of the document shall forward it to a USCIS office.
(e) Fingerprinting waiver.
(1) Fingerprinting is waived for nonimmigrant aliens admitted as foreign government officials and employees; international organization representatives, officers and employees; NATO representatives, officers and employees, and holders of diplomatic visas while they maintain such nonimmigrant status. Fingerprinting is also waived for other nonimmigrant aliens, while they maintain nonimmigrant status, who are nationals of countries which do not require fingerprinting of United States citizens temporarily residing therein.
(2) Fingerprinting is waived for every nonimmigrant alien not included in paragraph (e)(1) of this section who departs from the United States within one year of his admission, provided he maintains his nonimmigrant status during that time; each such alien not previously fingerprinted shall apply therefor at once if he remains in the United States in excess of one year.
(3) Every nonimmigrant alien not previously fingerprinted shall apply therefor at once upon his failure to maintain his nonimmigrant status.
(g) Registration and fingerprinting of children who reach age 14. Within 30 days after reaching the age of 14, any alien in the United States not exempt from alien registration under the Act and this chapter must apply for registration and fingerprinting, unless fingerprinting is waived under paragraph (e) of this section, in accordance with applicable form instructions.
(1) Permanent residents. If such alien is a lawful permanent resident of the United States and is temporarily absent from the United States when he reaches the age of 14, he must apply for registration and provide a photograph within 30 days of his or her return to the United States in accordance with applicable form instructions. The alien, if a lawful permanent resident of the United States, must surrender any prior evidence of alien registration. USCIS will issue the alien new evidence of alien registration.
(2) Others. In the case of an alien who is not a lawful permanent resident, the alien's previously issued registration document will be noted to show that he or she has been registered and the date of registration.