(a) The Secretary of Labor shall prescribe such regulations as
may be necessary to carry out this chapter. Such regulations shall,
at a minimum, include interpretative regulations describing the
methods by which employers may provide for appropriate service of
notice as required by this chapter.
(b) The mailing of notice to an employee's last known address or
inclusion of notice in the employee's paycheck will be considered
acceptable methods for fulfillment of the employer's obligation to
give notice to each affected employee under this chapter.