A law of February 17, 1864,[183] provided that all soldiers between the ages of eighteen and forty-five should be retained in service during the war. Those between the ages of seventeen and eighteen, and forty-five and fifty were called into service as a reserve force for the defence of the state. All exemptions were repealed except the following: (1) the members of Congress and of the state legislature, and such Confederate and state officers as the President or the governors might certify to be necessary for the proper administration of government; (2) ministers regularly employed, superintendents, attendants, and physicians of asylums for the deaf, dumb, and blind, insane, and other public hospitals, one editor for each newspaper, public printers, one druggist for each drug store which had been two years in existence, all physicians who had practised seven years, teachers in colleges of at least two years' standing and in schools which had twenty pupils to each teacher; (3) one overseer or agriculturist to each farm upon which were fifteen or more negroes, in case there was no other exempt on the plantation. The object was to leave one white man, and no more, on each plantation, and the owner or overseer was preferred. In return for such exemption, the exempt was bound by bond to deliver to the Confederate authorities, for each slave on the plantation between the ages of sixteen and fifty, one hundred pounds of bacon or its equivalent in produce, which was paid for by the government at prices fixed by the impressment commissioners. In addition, the exempt was to sell his surplus produce at prices fixed by the commissioners. The Secretary of War was authorized to make special details, under the above conditions, of overseers, farmers, or planters, if the public good demanded it; also (4) to exempt the higher officials of railroads and not more than one employee for each mile of road; and (5) mail carriers and drivers. The President was authorized to make details of old men for special service.[184] By an act passed the same day free negroes from eighteen to fifty years of age were made liable to service with the army as teamsters. These acts of February 17, 1864, were the last Confederate legislation of importance in regard to conscription and exemption. During the year 1864 the Confederate authorities devoted their energies to construing away all exemptions possible, and to absorbing the state reserve forces into the Confederate army. Policy of the State in Regard to Conscription