Section 18
SEC. 18. This Act shall take effect upon its approval. Approved, June 20, 1964.
RA 4137 Section 18
SEC. 18. This Act shall take effect upon its approval. Approved, June 20, 1964.
CitationRA 4137 Section 18 (LawPlayer, data as of July 4, 2026)
Source: Supreme Court E-Library, Republic of the Philippines. Philippine laws are public documents (works of the government).