218.2.4. The second additional contribution rate for a year is equal to the second additional contribution rate for the preceding year to which is added, for each of the three years that follow the calculation of the most recent difference giving rise to an adjustment, the annual rate of adjustment of additional contributions, determined under each of paragraphs a to c of section 218.2.3, multiplied by 4.
2023, c. 302023, c. 30, s. 171.