US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER a: PERMITS AND GENERAL PROVISIONSPart 203 — MAJOR STATIONARY SOURCES CONSTRUCTION AND MODIFICATIONSubpart I203.103035 Ill. Adm. Code 203.1030DefinitionsLast amended: 2025Year: 2026Length: 29 wordsOfficial source Section 203.1030 Definitions Unless otherwise specified in this Part, terms used in this Part have the same meaning as the terms used in 35 Ill. Adm. Code Part 211.Previous35 Ill. Adm. Code 203.1020Next35 Ill. Adm. Code 203.1040