; and (B) the nature and duration of the relationship between the affiant and the alien. (18) Any other evidence determined to be credible by the Secretary. (c) Documents establishing exemption from application fees To establish that an alien is exempt from an application fee under section 203(c), the alien may submit to the Secretary the following relevant documents: (1) Documents to establish age To establish that an alien meets an age requirement, the alien may provide proof of identity, as described in subsection (a), that establishes that the alien is younger than 18 years of age. (2) Documents to establish income To establish the alien’s income, the alien may provide— (A) employment records or other records of earned income that have been maintained by the Social Security Administration, the Internal Revenue Service, or any other Federal, State, or local government agency; (B) bank records; or (C) at least 2 sworn affidavits from individuals who are not related to the alien and who have direct knowledge of the alien’s work and income that contain— (i) the name, address, and telephone number of the affiant; and (ii) the nature and duration of the relationship between the affiant and the alien. (3) Documents to establish foster care, lack of familial support, or serious, chronic disability To establish that the alien was in foster care, lacks parental or familial support, or has a serious, chronic disability, the alien may provide at least 2 sworn affidavits from individuals who are not related to the alien and who have direct knowledge of the circumstances that contain— (A) a statement that the alien is in foster care, otherwise lacks any parental or other familiar support, or has a serious, chronic disability, as appropriate; (B) the name, address, and telephone number of the affiant