Reliable or not, it is codified. If it is not reliable, then it is the CRA's problem.
§ 232.5 Optional Identification of covered borrower.
(b) Safe harbor—(1) In general. A creditor may conclusively determine whether credit is offered or extended to a covered borrower, and thus may be subject to 10 U.S.C. 987 and the requirements of this part, by assessing the status of a consumer in accordance with this paragraph (b).
(2) Methods to check status of consumer—
(ii) Consumer report from a nationwide consumer reporting agency. To determine whether a consumer is a covered borrower, a creditor may verify the status of a consumer by using a statement, code, or similar indicator describing that status, if any, contained in a consumer report obtained from a consumer reporting agency that compiles and maintains files on consumers on a nationwide basis, or a reseller of such a consumer report (as each of those terms is defined in the Fair Credit Reporting Act (15 U.S.C. 1681a) and any implementing regulation (12 CFR part 1022)).
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