this is what i found:
[h=4]is nln accreditation mandatory?[/h]
nln accreditation is optional, but a desirable credential for nursing programs to have. nln accreditation of a nursing program indicates the program meets six nlnac standards related to mission and administration, faculty and staff, students, curriculum, resources and outcomes. each standard has between five and 10 criteria, each of which must be met to attain accreditation.
see: nln accreditation questions and answers - nursing - spokane community college for more info. this also might be helpful: nlnac accredited nursing programs and this: national league for nursing - about the nln