3. Despite this section, for construction work other than maintenance, repair or demolition work, for which contracts were signed before 21 October 2004, a contractor may meet the requirements of either the Regulation respecting the application of a safety code for elevators and a standard for lifts for persons with physical disabilities (O.C. 111-97, 97-01-29) or the Regulation respecting passenger ropeways (O.C. 2476-82, 82-10-27) provided the construction work begins before 19 April 2005.(O.C. 895-2004, s. 4)