In order to sign up for Evening Classes you need to fill out the Ecclesiastical Endorsement. The website and instructions can be found below:
BYU Evening Classes
Student Commitment and Ecclesiastical Endorsement
Admitted BYU Students
Students admitted to BYU in Provo do not need to do anything extra to take BYU Evening Classes. They will simply register for the classes using MyMap, making sure the section is “EVENING”.
Brigham Young University, including BYU Evening Classes, exists to provide an education in an atmosphere consistent with the ideals and principles of The Church of Jesus Christ of Latter–day Saints. That atmosphere is created and preserved through commitment to conduct that reflects those ideals and principles. To that end, each student who is not admitted to BYU in Provo, but intends to take classes in a non-admitted status (officially designated as a “non-matriculated student”), is required to submit the Student Commitment and Confidential Report (also known as the “Ecclesiastical Endorsement”) to register for BYU Evening Classes. Information regarding the process for obtaining an Ecclesiastical Endorsement is available here.
Non-matriculated students who are or ever have been a member of The Church of Jesus Christ of Latter–day Saints must submit the endorsement, filled out online at the Ecclesiastical Endorsement Site and completed by the applicant’s LDS bishop or branch president and by a member of their current stake or district presidency after an interview with them. The endorsement certifies that the non-admitted student is in good standing in the Church and demonstrates in daily living, both on and off campus, his or her commitment to the BYU Honor Code and all moral virtues encompassed in the Gospel of Jesus Christ including regular church attendance.
Non-matriculated students who are not members of The Church of Jesus Christ of Latter-day Saints must maintain the same standards of conduct as Church members, except church attendance. Non–LDS students must obtain an ecclesiastical endorsement by interviewing with their local ecclesiastical leader if they are an active member of the congregation or the bishop of the LDS ward in which they currently reside, and the nondenominational BYU chaplain, 3490 WSC, BYU, Provo, UT 84602, 801–422–2293. Please contact BYU Evening Classes if help is needed in locating a bishop. The stake president interview is not required.
Unless granted an exception, a non-matriculated student who is currently excommunicated, disfellowshipped, or disaffiliated from the Church is not eligible to register for BYU Evening Classes until reinstated to full fellowship in the Church. Also, unless granted an exception, a non-admitted student who is on probation with the Church or who otherwise lacks an ecclesiastical endorsement is not able to register for BYU Evening Classes until the issue giving rise to the probation or lack of ecclesiastical endorsement is resolved with his or her authorized ecclesiastical leader. Non-matriculated students seeking an exception to this policy must complete an Application for Exception to Policy form available from the executive director of Student Academic and Advisement Services (SAAS). The university ultimately reserves the right to make the registration decision.
Ecclesiastical endorsements are valid for one year and must be renewed each year of enrollment at endorse.byu.edu. Should the endorsement not be renewed or if it is withdrawn for any reason, the student will be discontinued from the program.