Modifying
Modifying means changing operations in a manner that will result in additional impacts on refuge resources, visitor uses, refuge administration, or human health and safety beyond the scope, intensity, and/or duration of existing impacts. In order to determine if activities would have additional impacts, you must consult with the Service.
Source
50 CFR § 29.50
Scoping language
In addition to the definitions in 25.12, 29.21, and 36.2 of this subchapter, the following definitions apply to this subpart: