This rule amends EPA's notification and non-notification procedures for certain registration modifications. The rule no longer specifies the types of modifications that may be accomplished by notification or without notification to EPA. The rule provides that EPA will issue procedures for notification and non-notification. EPA will thereafter designate modifications that may be accomplished through the notification and non-notification procedures by notice to registrants. This revision will streamline the regulations by eliminating listings of very specific modifications, and provide greater flexibility to expand the scope of the notification/non-notification process.