Ruling. A ruling is a written statement issued by the National Office to a taxpayer or to the taxpayer's authorized representative (as such term is defined in 601.201(e)(7) of this chapter) on behalf of the taxpayer, that interprets and applies tax laws to a specific set of facts. A ruling generally recites the relevant facts, sets forth the applicable provisions of law, and shows the application of the law to the facts.


26 CFR § 301.6110-2

Scoping language

Written determination. A written determination is a ruling, a determination letter, or a technical advice memorandum, as such terms are defined in paragraphs (d), (e), and (f) of this section, respectively. Notwithstanding paragraphs (d) through (f) of this section, a written determination does not include for example, opinion letters (as defined in 601.201(a)(4) of this chapter), information letters (as defined in 601.201(a)(5) of this chapter), technical information responses, technical assistance memoranda, notices of deficiency, reports on claims for refund, Internal Revenue Service decisions to accept taxpayers' offers in compromise, earnings and profits determinations, or documents issued by the Internal Revenue Service in the course of tax administration that are not disclosed to the persons to whose tax returns or tax liability the documents relate.

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