Types of CSNO Membership There are six types of membership categories so that joining CSNO/NASN is available to nearly everyone. Active membersare registered nurses holding state credentials to practice as school nurses in California. School nurses on leave of absence or engaged in full-time teaching, administration or study or retired, retain their right to active membership. Active members shall have all rights and privileges. Associate members are allied professionals (RN's, LVN's, UAP's) employed by school boards of education, a public agency, a governing board of a private school, or a board of trustees of an institution of higher education. Associate members have all rights and privileges but may not vote or hold elective office. Retired members are school nurses who have held active membership, but are retired. Retired members have all rights and privileges. Student members are registered nurses who are enrolled in a school nursing program and/or hold a preliminary school nurse credential. Student members shall have all rights and privileges, but may not vote or hold elective office. Fully credentialed school nurses actively employed are ineligible to have student membership status. Membership in this category cannot exceed five years. Life members may be past State Presidents of CSNO who have retired. Life members shall have all rights and privileges but may not hold elective office. Corporate/Business/ Professional Organizations are persons or Organizations whose members are not eligible for Active or Associate membership in CSNO Member-at-Largeare those persons who hold a special interest in or who are working with CSNO and who do not fit into any other CSNO membership classification.