The notice giving a reservoir designation for the first time under section 17 or a notice giving a different designation under section 18 takes effect on the day after the notice is served. Subsection (2) provides that the first reservoir designation for a controlled reservoir being constructed or restored to use takes effect the day after the date of the final certificate in respect of the works. Subsection (3) provides that where a different designation is given after a periodic reassessment for a controlled reservoir being increased or decreased in capacity, the different designation notice takes effect on the day after the date of the final certificate in respect of the works.
Commentary on Sections Part 1 – Controlled Reservoirs, Registration and Reservoir Designation Section 19 – Date on which reservoir designation given under section 17 or given as a different designation under section 18 takes effect