337. Work to stabilize an embankment is exempted from authorization pursuant to this Division on the following conditions:(1) construction of the stabilization works required does not exceed a length of(a) 50 m, when phytotechnology is used; or
(b) 30 m or 5 times the width of the watercourse, whichever is the most restrictive, when the works is constructed using inert materials;
(2) if the work is intended to extend or join stabilization works, the extension or junction must not result in an extension of the total length of the works beyond the limit set in paragraph 1.