31.3101-1—Measure of employee tax.
         The employee tax is measured by the amount of wages received after 1954 with respect to employment after 1936. See  § 31.3121(a)-1, relating to wages; and  §§ 31.3121(b)-1 to 31.3121(b)-4, inclusive, relating to employment. For provisions relating to the time of receipt of wages, see  § 31.3121(a)-2.