US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDPart 503 — OTHER AGRICULTURAL AND SILVICULTURAL ACTIVITIES503.10335 Ill. Adm. Code 503.103Silvicultural ActivitiesLast amended: 1978Year: 2026Length: 16 wordsOfficial source Section 503 Section 503.103 Silvicultural Activities NPDES permits are required for discharges from silvicultural point sources.Previous35 Ill. Adm. Code 503.102Next35 Ill. Adm. Code 503.APPENDIX