S-2.1, r. 4 - Safety Code for the construction industry

Full text Two-blocking situation protection device:
(1)  Any mobile crane with a telescopic boom shall be equipped with a device designed to warn the operator that a two-blocking situation is about to occur, by means of warning lights and buzzer or an apparatus that stops the equipment. The protection device must be of the fail-safe design.
(2)  A cable mobile crane must be equipped with a protective device complying with the device described in paragraph 1. Depending on the date on which the crane was manufactured, the device must be installed not later than:

Date on which the crane Final date on which the protection
was manufactured device must be installed

As of the date of coming At the time it was manufactured
into force of this

From 1 January 1995 to On the date of coming into force
the day preceding the of this Regulation
date of coming into
force of this Regulation

From 1 January 1990 to 31 December 2001
31 December 1994

From 1 January 1985 to 31 December 2002
31 December 1989

From 1 January 1980 to 31 December 2003
31 December 1984

From 1 January 1975 to 31 December 2004
31 December 1979

From 1 January 1970 to 31 December 2005
31 December 1974

Before 1 January 1970 31 December 2006.
(3)  This section does not apply to a cable mobile crane equipped with a shovel, a dragging bucket, a clamshell bucket or a pile hammer and that is used for purposes other than the hoisting of loads and to a cable mobile crane that is used to carry out the following foundation work, including all handling work required to that end: pile driving, installation of drilled or excavated caissons, installation of sheet-piling, setting up of shoring devices, below-grade work, drilling of tie rods or anchors and ground improvement techniques such as dynamic compacting and vibroflotation.
O.C. 53-90, s. 5; O.C. 35-2001, s. 10.