The tax shall be first effective with respect to income earned subsequent to December 31, 1957.

30 Del. C. 1953, § ?1920; 51 Del. Laws, c. 298; 51 Del. Laws, c. 315, § ?16; 68 Del. Laws, c. 187, §§ ?12, 14;

Terms Used In Delaware Code Title 30 Sec. 1907