Islands in office on the date of its enactment. 32. APPROPRIATIONS. There are hereby authorized to be appropriated annually by the Congress of the United States such sums as may be necessary and appropriate to carry out the provisions and purposes of this Act. AMENDMENTS AND REVISIONS 33. PROPOSAL OF AMENDMENTS AND REVISIONS BY THE LEGISLATURE OF THE VIRGIN ISLANDS. The Legislature of the Virgin Islands may propose amendments and revisions to this Organic Act by a vote of not less than two-thirds of the total number of members of which the Legislature is composed. All proposed amendments and revisions shall be submitted to both Houses of the Congress and if approved by both Houses of the Congress shall become effective as constituent parts of the Organic Act upon the approval of the President of the United States. 34. PROPOSAL OF AMENDMENTS AND REVISIONS BY POPULAR INITIATIVE. Amendments and revisions of this Organic Act may be proposed to the Legislature of the Virgin Islands by means of a petition signed by not less than ten per cent of the qualified voters. If the Legislature approves the proposed amendments or revisions by a vote of not less than two- thirds of the total number of members of which the Legislature is composed, said amendments and revisions shall be submitted to both Houses of the Congress and if approved by both Houses of the Congress shall become effective as constituent parts of the Organic Act upon the approval of the President of the United States. If the Legislature rejects, fails to act upon, or substitutes other amendments or revisions for the amendments or revisions proposed by the people through the initiative, the proposals of the people go on ballot at the next general election. If such proposals are approved by a majority of the voters voting on the matter, said proposed amendments or revisions shall be submitted to both Houses of the Congress by the Governor and if approved by both Houses of the Congress shall become effective as constituent parts of the Organic Act upon the approval of the President of the United States.