45 CFR § 155.350 - Special eligibility standards and process for Indians.
(a) Eligibility for cost-sharing reductions.
(b) Special cost-sharing rule for Indians regardless of income. The Exchange must determine an applicant eligible for the special cost-sharing rule described in section 1402(d)(2) of the Affordable Care Act if he or she is an Indian, without requiring the applicant to request an eligibility determination for insurance affordability programs in accordance with § 155.310(b) in order to qualify for this rule.
(1) Utilizing any relevant documentation verified in accordance with § 155.315(f);
(2) Relying on any electronic data sources that are available to the Exchange and which have been approved by HHS for this purpose, based on evidence showing that such data sources are sufficiently accurate and offer less administrative complexity than paper verification; or
(3) To the extent that approved data sources are unavailable, an individual is not represented in available data sources, or data sources are not reasonably compatible with an applicant's attestation, the Exchange must follow the procedures specified in § 155.315(f) and verify documentation provided by the applicant in accordance with the standards for acceptable documentation provided in section 1903(x)(3)(B)(v) of the Social Security Act.