Title 26 - INTERNAL REVENUE is composed of twenty volumes. The contents of these volumes represent all current regulations issued by the Internal Revenue Service, Department of the Treasury, as of April 1, Annually. The first thirteen volumes comprise part 1 (Subchapter A—Income Tax) and are arranged by sections as follows: §§ 1.0–1–1.60; §§ 1.61–1.169; §§ 1.170–1.300; §§ 1.301–1.400; §§ 1.401–1.440; §§ 1.441–1.500; §§ 1.501–1.640; §§ 1.641–1.850; §§ 1.851–1.907; §§ 1.908–1.1000; §§ 1.1001–1.1400; § 1.1401-1.503-2A and §§ 1.1551-End. The fourtenth volume containing parts 2–29, includes the remainder of subchapter A and all of Subchapter B—Estate and Gift Taxes. The last five volumes contain parts 30–39 (Subchapter C—Employment Taxes and Collection of Income Tax at Source); parts 40–49; parts 50–299 (Subchapter D—Miscellaneous Excise Taxes); parts 300–499 (Subchapter F—Procedure and Administration); parts 500–599 (Subchapter G—Regulations under Tax Conventions); and part 600 to end (Subchapter H—Internal Revenue Practice).