Mount Carmel is recognized and approved by:
- The National Catholic Education Association
- The North Central Association of Colleges and Schools
- The Illinois State Board of Education, Nonpublic School Recognition
Mount Carmel is a member of:
- Association for Supervision and Curriculum Development
- Carmelite Secondary Education Association
- Catholic High School Association of Religion Teachers
- Chicago Catholic League
- The College Board
- Council for Advancement and Support of Education
- Missouri Library Network Corporation
- American Library Association
- Illinois State Library and Media Association
- Illinois Council for the Social Studies
- National Association of Secondary School Principals
- National Council for the Social Studies
- National Council of Teachers of English
- National Council of Teachers of Mathematics
- National Honor Society
- National Science Teachers Association
- Phi Delta Kappa