Section 163. Notice; participants in the World Trade Center rescue, recovery and clean-up operations

The  notice requirements for injury or death
  resulting from a qualifying condition for a participant in  World  Trade
  Center rescue, recovery and clean-up operations shall be the same as set
  forth  in section eighteen of this chapter, except that the notice shall
  be given to the employer, or in the case of a volunteer, to  the  board,
  within  two  years after the disablement of the participant or after the
  participant knew or should have known that the qualifying condition  was
  causally  related  to  his  or  her  participation in World Trade Center
  rescue, recovery and clean-up operations, whichever is the later date.