Important notice regarding edition numbering: We have moved to a single-year format on most Annual publications, aligned with the year of publication. This change is intended to standardize edition naming. Content remains fully updated for 2026.
Though not everything in the Impact Assessment Act is new, this legislation introduces substantive changes that broaden the scope of all federal assessments. Turn to this publication to gain a thorough understanding of the IAA. Formerly published as Guide to the Canadian Environmental Assessment Act.