Canadian Aviation Regulations (SOR/96-433)

302.602 (1) A RESA shall have a minimum length of 150 m and shall conform to the requirements respecting location, characteristics and objects in the runway end safety area set out in 3.2 of Chapter 3 of the document entitled Aerodrome Standards and Recommended Practices, TP 312E, published by the Department of Transport.

(2) The operator of an airport may reduce the length of the ASDA, LDA or TORA in order to obtain the minimum length referred to in subsection (1).

(3) The minimum length referred to in subsection (1) does not apply if the operator of an airport installs an arresting system that is designed to stop an aeroplane in the event that the aeroplane overruns a runway and that conforms to the requirements regarding such a system set out in 3.2 of Chapter 3 of TP 312E.

(4) A RESA is not required before the starting point of the LDA if

• (a) the runway is equipped with a serviceable precision approach path indicator (PAPI) or abbreviated precision approach path indicator (APAPI); or

• (b) an instrument approach procedure with approved vertical guidance that is not restricted by a special authorization or an operations specification is available in respect of the runway.

(5) For the purposes of paragraph (4)(b), approved vertical guidance means glide slope deviation information provided to a pilot until the decision height is reached to assist in the carrying out of a three-dimensional instrument approach without a missed approach point, but in respect of a missed approach segment that begins at the decision height.