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St. Laurence Catholic School was fully accredited in 1995 through the Texas Catholic Conference Department (TCCED) under the aegis of the Texas Education Agency (TEA). We adhere to the policies and procedures of the TCCED and the Archdiocese of Galveston–Houston. We were given the designation of Blue Ribbon School during the 2005-2006 and 2014-2015 school year. The school is a member of the National Catholic Education Association as well as the following professional associations:
- American Association of Health, Physical Education
- Recreation, and Dance (AAHPERD)
- Archdiocese of Galveston–Houston
- American Council on the Teaching of Foreign Language (ACTFL)
- Association for Supervision and Curriculum Development (ASCD)
- Association of Fundraising Professionals (AFP)
- Catholic Library Association of Galveston-Houston (CLAGH)
- Food Allergy and Anaphylaxis Network (FAAN)
- Galveston-Houston Early Childhood Association (GHECA)
- Houston Area Association for the Education of Young Children (HAAEYC)
- Houston Association of Independent Schools (HAIS)
- Houston Area Independent School Library Network (HAISLN)
- International Dyslexia Association (IDA)
- International Reading Association (IRA)
- International Society of Technology in Education (ISTE)
- Lions Club International/Leo Club
- National Art Education Association (NAEA)
- National Association for the Education of Young Children (NAEYC)
- National Association of Student Councils (NASC)
- National Association of Secondary School Principals (NASSP)
- National Association of Elementary School Principals (NAESP)
- National Catholic Education Association (NCEA)
- National Council of Social Studies Teachers (NCSST)
- National Council for Teachers of Mathematics (NCTM)
- National Elementary Honor Society (NEHS)
- National Junior Honor Society (NJHS)
- National Middle School Association (NMSA)
- National Network for Early Language Learning (NNELL)
- National Science Teachers Association (NSTA)
- Reading for Blind and Dyslexic (RFBD)
- Texas Art Educators Association (TAEA)
- Texas Association for the Education of Young Children (TAEYC)
- Texas Association for Gifted and Talented (TAGT)
- Texas Bandmaster Association (TBA)
- Texas Counseling Association (TCA)
- Texas Computer Education Association (TCEA)
- Texas Council for Social Studies (TCSS)
- Texas Foreign Languages Association (TFLA)
- Texas Library Association (TLA)
- Texas Music Education Association (TMEA)
- Texas School Counselor Association (TSCA)
- United States Tennis Association (UTSA)