Contract Modification means any changes in the terms or provisions of the Contract which are reduced to writing and fully executed by both parties.
Permit modification means a revision to a Title V operating permit that cannot be accomplished under the provisions for administrative permit amendments found at rule 567—22.111(455B). A permit modification for purposes of the acid rain portion of the permit shall be governed by the regulations pertaining to acid rain found at rules 567—22.120(455B) to 567—22.147(455B). This definition of “permit modification” shall be used solely for purposes of this chapter governing Title V operating permits.
Substantial modification means modification of a relevant source that results in a significant increase in emissions, excluding any change in emissions resulting from by-product recovery. It shall be a matter for the Party to decide whether a modification is substantial or not;
Minor modification means a modification that does not significantly alter the nongovernmental function or purpose of the software or is of the type customarily provided in the commercial marketplace.
Major modification means any physical change in or change in the method of operation of a major stationary source that would result in a significant emissions increase of a regulated NSR pollutant and a significant net emissions increase of that pollutant from the major stationary source.