South Cook Intermediate Service Center

In Illinois, ISC stands for Intermediate Service Center. ISCs serve a role similar to a Regional Office of Education (ROE), providing support, oversight, and services to school districts within their geographic area. ISBE

Since you report to ISC #4, that is the South Cook Intermediate Service Center #4, which serves school districts in suburban South Cook County. ISC South Cook Intermediate Service Center #4

Typical ISC responsibilities include:

• Educator licensure support (ELIS, renewals, endorsements)
• Professional development
• Truancy and student support services
• Regional Safe Schools programs
• Health/Life/Safety oversight
• Compliance monitoring
• District support and communication with ISBE 

For Arbor Park SD 145, when ISBE says to contact or work through your regional office, that would generally be South Cook ISC #4. The ISC acts as a local extension of ISBE for many operational, compliance, licensure, and support functions. 

South Cook ISC #4 is headquartered in Chicago Heights and is led by an Executive Director rather than an elected Regional Superintendent, but it performs the same basic functions as an ROE