TCN is not a school nor is it accredited in any way academically. They are a publishing company that creates study guides. They do not give college credit nor do they grant degrees. (This should be clear in the fine print in their website/contract). Publishing companies cannot be academically accredited regionally or nationally.
NJBoN does not accredit programs that are not located in NJ.
TCN is not authorized by, affiliated with nor recommended by Excelsior College. Excelsior College clearly states that no outside company representative (whether TCN, Rue, Achieve or any other company) may make admissions or academic advising recommendations for the Excelsior College ASN program. Only EC admissions and advising staff may do so. The study guides are not authorized by EC and have been found at times to contain incorrect or irrelevant material especially if an exam has been updated/changed.
Indiana State University DOES have a relationship with TCN. And if you fail an ISU exam you are expected to purchase a TCN module before retaking the exam.
As you are challenging exams not taking classes, the CLEP or DANTES or even EC exams for general education are likely to transfer (with the exception of A&P/Micro as those do not have a lab component and most schools
require lab classes ). Nursing challenge exams may or may not transfer but as each curriculum is unique most schools do not accept transfer of nursing classes.