Section, acts Mar. 2, 1917, ch. 145, § 4, 39 Stat. 953 ; May 17, 1932, ch. 190, 47 Stat. 158 , designated San Juan as the capital of Puerto Rico . Section 6 of act Apr. 12, 1900, ch. 191, 31 Stat. 79 , formerly cited as a credit to this section, was not repealed by act July 3, 1950 . Statutory Notes and Related Subsidiaries Effective Date of Repeal Act July 3, 1950, ch. 446, § 5, 64 Stat. 320 , provided that the repeal of this section and sections 735, 750, 753, 754, 771–793, 793b, 796–799, 811–820, 822, 823, 824–844, 861, and 873 of this title and the amendment of sections 737 and 752 of this title were to be effective at such time as the Constitution of the Commonwealth of Puerto Rico became effective. Under section 731d of this title , that Constitution, upon approval by the Congress of the United States, “shall become effective in accordance with its terms”. Congress , by act July 3, 1952, ch. 567, 66 Stat. 327 , approved, with certain conditions, that Constitution; the approving act further provided that the Constitution, as so approved, “shall become effective when the Constitutional Convention of Puerto Rico shall have declared in a formal resolution its acceptance in the name of Puerto Rico of the conditions of approval herein contained, and when the Governor of Puerto Rico , being duly notified by the proper officials of the Constitutional Convention of Puerto Rico that such resolution of acceptance has been formally adopted, shall issue a proclamation to that effect”. The Constitution was proclaimed by the Governor of Puerto Rico on July 25, 1952 , and became effective on that date.