Regional Timing Windows

You have accessed this document to obtain further information on Regional Timing Windows. Regional Timing Windows are one of the measures applied to protect fish from impacts of works or undertakings in and around water during spawning migrations and other critical life history stages. Works in and about watercourses must be undertaken at a time of year when the threat of negative impacts to aquatic organisms is low, in accordance with Terms and Conditions specified by the provincial Habitat Officer [Water Act, section 42(1)(a)] and as identified by DFO. Proponents must ensure that instream works minimize the impacts to all aquatic organisms including fish, wildlife, aquatic invertebrates and species at risk.