Illinois HB 4140: DIGITAL AGE ASSURANCE ACT

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104TH GENERAL ASSEMBLY 
State of Illinois 
2025 and 2026
HB4140

Introduced 10/15/2025, by Rep. Travis Weaver 

SYNOPSIS AS INTRODUCED:

New Act

 Creates the Digital Age Assurance Act. Provides that an operating system provider shall: (1) provide an accessible interface at account setup that requires an account holder to indicate the birth date or age of the user of that device for the purpose of providing a signal regarding the user's age bracket to applications available in a covered application store; and (2) provide a developer who has requested a signal with respect to a particular user with a digital signal by a reasonably consistent real-time application programming interface that identifies, at a minimum, which age bracket pertains to the user. Provides that a developer that receives a signal in accordance with the Act shall be deemed to have actual knowledge of the age range of the user to whom that signal pertains across all platforms of the application and points of access of the application. Limits the use of data collected under the Act. Provides that a person that violates the Act shall be subject to an injunction and a specified civil penalty. Sets forth provisions concerning nondiscrimination and the scope of the Act. Effective January 1, 2027.

LRB104 15499 SPS 28662 b

A BILL FOR

HB4140LRB104 15499 SPS 28662 b

1 AN ACT concerning business.

2 Be it enacted by the People of the State of Illinois, 

3represented in the General Assembly:

4 Section 1. Short title. This Act may be cited as the 

5Digital Age Assurance Act.

6 Section 5. Definitions. In this Act:

7 "Account holder" means an individual in this State who is 

8at least 18 years of age or a parent or legal guardian of a 

9user in this State who is und