Illinois Code § 3
Illinois Code § 3. Reproduced from the official Illinois Compiled Statutes, with a citation summary, verification link, and related provisions.
§ 3.
Application of Act; exemptions. (a) Nothing in this Act shall be construed to prevent the practice of structural engineering as defined in the Structural Engineering Practice Act of 1989 or the practice of architecture as defined in the Illinois Architecture Practice Act of 1989 or the regular and customary practice of construction contracting and construction management as performed by construction contractors. (b) Nothing in this Act shall be construed to prevent the regular and customary practice of a private alarm contractor licensed pursuant to the Private Detective, Private Alarm, Private Security, Fingerprint Vendor, and Locksmith Act of 2004. (c) Nothing in this Act shall be construed to prevent a fire sprinkler contractor licensed under the Fire Sprinkler Contractor Licensing Act from providing fire protection system layout documents. For the purpose of this subsection (c), "fire protection system layout documents" means layout drawings, catalog information on standard products, and other construction data that provide detail on the location of risers, cross mains, branch lines, sprinklers, piping per applicable standard, and hanger locations. Fire protection system layout documents serve as a guide for fabrication and installation of a fire sprinkler system. (d) A building permit for a building that requires a fire suppression system shall not be issued without the submission of a technical submission prepared and sealed by a licensed design professional. Fire protection system layout documents do not require an engineering seal if prepared by a technician who holds a valid NICET level 3 or 4 certification in fire protection technology, automatic sprinkler system layout. An authority having jurisdiction may not accept fire protection system layout documents in lieu of technical submissions. Fire protection system layout documents may be submitted as supporting documents to supplement technical submissions. However, in the event the fire protection system layout documents materially alter the technical submissions, the authority having jurisdiction shall return both the fire protection layout documents and technical submissions to the licensed design professional for review. (e) Nothing in this Act shall prevent: (1) Employees, including project representatives, of professional engineers lawfully practicing as sole owners, partnerships or corporations under this Act, from acting under the direct supervision of their employers. (2) The employment of owner's representatives by the owner during the constructing, adding to, or altering of a project, or any parts thereof, provided that such owner's representative shall not have the authority to deviate from the technical submissions without the prior approval of the professional engineer for the project. (3) The practice of officers and employees of the Government of the United States while engaged within this State in the practice of the profession of engineering for the Government. (4) Services performed by employees of a business organization engaged in utility, telecommunications, industrial, or manufacturing operations, or by employees of laboratory research affiliates of such business organization that are rendered in connection with the fabrication or production, sale, and installation of products, systems, or nonengineering services of the business organization or its affiliates. (5) Inspection, maintenance and service work done by employees of the State of Illinois, any political subdivision thereof or any municipality. (6) The activities performed by those ordinarily designated as chief engineer of plant operation, chief operating engineer, locomotive, stationary, marine, power plant or hoisting and portable engineers, electrical maintenance or service engineers, personnel employed in connection with construction, operation or maintenance of street lighting, traffic control signals, police and fire alarm systems, waterworks, steam, electric, and sewage treatment and disposal plants, or the services ordinarily performed by any worker regularly employed as a locomotive, stationary, marine, power plant, or hoisting and portable engineer or electrical maintenance or service engineer for any corporation, contractor or employer. (7) The activities performed by a person ordinarily designated as a supervising engineer or supervising electrical maintenance or service engineer who supervises the operation of, or who operates, machinery or equipment, or who supervises construction or the installation of equipment within a plant that is under such person's immediate supervision. (8) The services, for private use, of contractors or owners in the construction of engineering works or the installation of equipment. (Source: P.A. 101-310, eff. 8-9-19.)
Source: official Illinois text · Last verified 2026-08-27
At a glance
- Citation: Illinois Compiled Statutes § 3
- Jurisdiction: Illinois
- Code: Illinois Compiled Statutes
- Text: transcribed from the official source (verify below)
Verify the text
Statute text is transcribed from the official Illinois Compiled Statutes. Confirm it against the primary source before relying on it:
Not legal advice. Verify against the official source and consult a licensed Illinois attorney.
Common questions
What is the source of Illinois Compiled Statutes § 3?
The text above is transcribed from the Illinois Compiled Statutes, the codified statutes of Illinois. The official publisher link appears under "Verify the text" on this page.
What subject does Illinois Compiled Statutes § 3 address?
It addresses the rule set out in the section text. Read the section together with the surrounding provisions listed under "Nearby provisions" for the full picture.
Is Illinois Compiled Statutes § 3 still in force?
Statutes are amended, repealed, and renumbered every session. Confirm the current version at the official Illinois source before relying on this text.
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No. This is a reference transcription for research. Applying Illinois law to your facts requires a licensed Illinois attorney who can review the specifics.