54. For the years 1966 to 1973, any worker is exempted from the base contribution under section 53 whose pensionable earnings for the year from self-employment and from pensionable salary or wages are less than the minimum hereinafter defined.
The minimum contemplated in the first paragraph is equal to one and one-third times the Basic Exemption for the year, if that amount is a multiple of $100; if not, the next lowest multiple of $100 shall be substituted therefor.
When the personal exemption of the worker is less than the basic exemption, the minimum hereinabove defined shall be proportionately reduced.
1965 (1st sess.), c. 24, s. 51; 1974, c. 16, s. 10; 2018, c. 2, s. 231.