School accrediting agencies provide information on both the means they use to evaluate schools and the schools that have passed periodic agency assessment. A few examples of regional accrediting agencies include the New England Association of Schools and Colleges and the North Central Association of Colleges and Schools.
A list of government recognized accrediting agencies is provided on the United States Department of Education's website. The main purpose of agencies like NEASC and the NCACS is to ensure that participating schools meet the strict guidelines that the agencies establish in order to promote institutional effectiveness and success.
Those who want to verify that the a particular school meets its accrediting agency's strict criteria can sometimes find lists of participating schools on the accrediting agency's website. In addition, many agencies subject participating schools to a periodic review to ensure that standards are continuously met and improved upon. For example, the New England Association of Schools and Colleges visits any particular participating school every 10 years.
Those who want to read the actual standards to which accrediting agencies hold their members can sometimes find this information on any particular agency's website. The New England Association of Schools and Colleges makes its standards available for the public to read.