Federal and state law and CPS policy allow the district and schools to share some personally-identifiable information about students with third-party organizations. This is called "directory information" and includes: student name, address, telephone number, date and place of birth, honors and academic awards, dates of attendance and information concerning school-sponsored activities, organizations, and athletics.
If you do not wish for this information to be shared, inform your child's school in writing and include your student's name, ID number and school. The CPS Student Code of Conduct (SCC) (p. 55) says the deadline for notifying your child’s school main office is October 1st.
Your school may have provided a form for Directory Information Opt Out as part of the paperwork distributed at the start of the school year. In addition, some CPS schools distribute a Media Consent Form which will authorize some release of information to third-parties. In either case, parents should can either edit those forms before signing, or submit a version of the form from the PCSP/CCFC linked to above explaining exactly which information can be shared with what type of organization.
The wording in the SCC is very broad, which means that if you do not opt out, CPS has the right to share your child's directory information with nearly any organization (emphasis ours):
"Specific parties who may request this information include, but are not limited to, external organizations delivering services to students such as Boys and Girls Clubs, YMCA, PTA, City sister agencies, and providers of programming that enriches a student’s academic and/or social and emotional learning"