Notice 2019-07 contains a proposed revenue procedure that provides for a safe harbor under which a rental real estate enterprise will be treated as a trade or business solely for purposes of section 199A of the Internal Revenue Code (Code) and §§ 1.199A-1 through 1.199A-6 of the Income Tax Regulations (Regulations) (26 CFR Part 1), which are being published contemporaneously with this notice. To qualify for treatment as a trade or business under this safe harbor, the rental real estate enterprise must satisfy the requirements of the proposed revenue procedure. If an enterprise fails to satisfy these requirements, the rental real estate enterprise may still be treated as a trade or business for purposes of section 199A if the enterprise otherwise meets the definition of trade or business in § 1.199A-1(b)(14).