Editorial Notes Codification Section, act June 29, 1950, ch. 404, 64 Stat. 275 , provided for extension of time of annual assessment work, on mining claims in the United States, including Alaska, for period commencing July 1, 1949 , until 12 o’clock noon Oct. 1, 1950 , and also provided for commencement of assessment work or improvements required for year ending 12 o’clock noon July 1, 1951 , immediately following 12 o’clock noon July 1, 1950 . See sections 28b to 28e of this title. CFR Title Parts 36 9 43 3710 , 3730 , 3800 , 3809 , 3810 , 3820 , 3830 , 3831 , 3832 , 3833 , 3838 , 3850