52 STAT.] 75TH CONG. , 3D SESS.-CHS. 533 , 534-JUNE 20, 1938 [CHAPTER 533] AN ACT To add certain lands to the Trinity National Forest, California. Be it enacted by the Senate and. House of Representatives of the United States of America in Cotngress assembled, That, subject to existing valid claims, the following-described lands be, and the same are hereby, added to the Trinity National Forest, California, and made subject to all laws and regulations relating to said National Forest: The west half section 6, township 33 north, range 9 west; sections 1 and 2, north half northeast quarter section 11, northwest quarter and north half north half northeast quarter section 12, town- ship 33 north, range 10 west; sections 35 and 36, township 34 north, range 10 west, all Mount Diablo meridian: Provided, That said lands shall not be subject to location or entry under the mineral laws or laws of the United States. Approved, June 20, 1938. [CHAPTER 534] AN ACT Providing for the zoning of the District of Columbia and the regulation of the location, height, bulk, and uses of buildings and other structures and of the uses of land in the District of Columbia, and for other purposes. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That to promote the health, safety, morals, convenience, order, prosperity, or general welfare of the District of Columbia and its planning and orderly development as the National Capital, the Zoning Commission created by the Act of March 1, 1920 (41 Stat. 500), is hereby empowered, in accordance with the conditions and procedures specified in this Act, to regulate the location, height, bulk, number of stories and size of buildings and other structures, the percentage of lot which may be occupied, the sizes of yards, courts, and other open spaces, the density of population, and the uses of buildings, structures, and land for trade, industry, residence, recreation, public activities, or other pur- poses; and for the purpose of such regulation said commission may divide the District of Columbia into districts or zones of such number, shape, and area as said Zoning Commission may determine, and within such districts may regulate the erection, construction, recon- struction, alteration, conversion, maintenance, and uses of buildings and structures and the uses of land. All such regulations shall be uniform for each class or kind of building throughout each district, but the regulations in one district may differ from those in other districts. SEC. 2. Such regulations shall be made in accordance with a com- prehensive plan and designed to lessen congestion in the street, to secure safety from fire, panic, and other dangers, to promote health and the general welfare, to provide adequate light and air, to prevent the undue concentration of population and the overcrowding of land, and to promote such distribution of population and of the uses of land as would tend to create conditions favorable to health, safety, transportation, prosperity, protection of property, civic activity, and recreational, educational, and cultural opportunities, and as would tend to further economy and efficiency in the supply of public serv- ices. Such regulations shall be made with reasonable consideration, among other things, of the character of the respective districts and their suitability for the uses provided in the regulations, and with a view to encouraging stability of districts and of land values therein. June 20,1938 [H. R . 81651 [Public, No. 683] Trinity National Forest, Calif. Lands added. Proviso. Restriction on loca- tion or entry. June 20, 1938 [H. R . 9844] [Public, No. 684] District of Colum- bia, zoning regulation. Zoning Commission, powers and duties. 41 Stat. 500. Regulation of loca- tion, height, etc. , of structures. Yards, courts, and other open spaces. Uses of buildings and lands. Division into dis- tricts or zones. Tnliformity of regul- lations within each district. Purposes of regula- tions. 797
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