An incumbent employee organization may affiliate or disaffiliate with another employee organization and the employer will be required to continue bargaining with the newly-affiliated organization, provided: 1) the affiliation or disaffiliation does not significantly disrupt the existing bargaining relationship; and 2) the employees that were affected by the affiliation had a full and fair opportunity to choose whether to affiliate or disaffiliate. Belmont School Committee, 9 MLC 1343 (1982). In determining whether the second criteria has been met, the Division considers the procedures the incumbent labor organization used for accomplishing the affiliation or disaffiliation, including notice to the employees, an opportunity for discussion, an orderly voting process, and a secret ballot.