Quick search by citation:

38 U.S. Code § 1523 - Combination of ratings

(a)
The Secretary shall provide that, for the purpose of determining whether or not a veteran is permanently and totally disabled, ratings for service-connected disabilities may be combined with ratings for non-service-connected disabilities.
(b)
Where a veteran, by virtue of subsection (a), is found to be entitled to a pension under section 1521 of this title, and is entitled to compensation for a service-connected disability, the Secretary shall pay such veteran the greater benefit.
(Pub. L. 85–857, Sept. 2, 1958, 72 Stat. 1136, § 523; Pub. L. 94–169, title I, § 106(19), Dec. 23, 1975, 89 Stat. 1018; renumbered § 1523 and amended Pub. L. 102–83, §§ 4(b)(1), (2)(E), 5(a), (c)(1), Aug. 6, 1991, 105 Stat. 404–406.)
Editorial Notes
Amendments

1991—Pub. L. 102–83, § 5(a), renumbered section 523 of this title as this section.

Subsec. (a). Pub. L. 102–83, § 4(b)(1), (2)(E), substituted “Secretary” for “Administrator”.

Subsec. (b). Pub. L. 102–83, § 5(c)(1), substituted “1521” for “521”.

Pub. L. 102–83, § 4(b)(1), (2)(E), substituted “Secretary” for “Administrator”.

1975—Subsec. (b). Pub. L. 94–169 substituted “such veteran” for “him”.

Statutory Notes and Related Subsidiaries
Effective Date of 1975 Amendment

Pub. L. 94–169, title I, § 106, Dec. 23, 1975, 89 Stat. 1017, provided that the amendment made by that section is effective Jan. 1, 1976.