License - Required.
Municipal Code of Chicago § 4-28-020
in effect4-28-020 License - Required.
No person shall engage in the business of drain layer without first having obtained a drain layer's license; provided, however, that a duly licensed plumber or plumbing contractor shall not require a drain layer's license to engage in the installation, maintenance or repair of plumbing as defined in Chapter 18-29.
(Added Coun. J. 12-12-01, p. 76426, § 1; Amend Coun. J. 10-14-21, p. 37722, Art. XIV, § 2)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2611827Fetched: 10/24/2026
