§ 5a

Actions arising on account of violations of any law intended for the protection of consumers, including but not limited to the following: chapter seventy-five C; chapter seventy-five D; section seven N of chapter ninety; sections twenty-one, twenty-one D, twenty-eight, forty-eight, forty-nine, sixty-nine, and seventy of chapter ninety-three; chapter ninety-three A; sections forty-six A to forty-six R, inclusive, and sections ninety-six to one hundred and fourteen B, inclusive, of chapter one hundred and forty; chapter one hundred and forty D; section one hundred and twenty-seven A of chapter one hundred and sixty-four; chapter one hundred and seventy-six D; sections fourteen, fifteen B, fifteen C, and eighteen of chapter one hundred and eighty-six; sections thirteen I, thirteen J, and thirteen K of chapter two hundred and fifty-five; chapter two hundred and fifty-five B; chapter two hundred and fifty-five C; and chapter two hundred and fifty-five D; whether for damages, penalties or other relief and brought by any person, including the attorney general shall be commenced only within four years next after the cause of action accrues.