US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER a: PERMITS AND GENERAL PROVISIONSPart 203 — MAJOR STATIONARY SOURCES CONSTRUCTION AND MODIFICATIONSubpart Q203.222035 Ill. Adm. Code 203.2220PAL Effective PeriodLast amended: 2025Year: 2026Length: 22 wordsOfficial source Section 203.2220 PAL Effective Period "PAL effective period" means the period beginning with the PAL effective date and ending 10 years later.Previous35 Ill. Adm. Code 203.2210Next35 Ill. Adm. Code 203.2230