FULL Any person who is qualified, by virtue of training and experience, and is actively involved in toxicology through administration, teaching, research, or safety assessment and who is functioning as a scientist or professional in toxicology is eligible for Full membership. Full members must have five years experience directly related to toxicology and fulfill one or more of the following requirements: formal advanced training in toxicology or related field, at least one peer-reviewed publication on a topic relevant to toxicology, or board certification, in a subject relevant to toxicology. Full membership must be supported by two Full members of the College. One of the sponsors for the Full member may be associated with the same institution/organization as the candidate. The second sponsor must be from outside the candidate's organization. Signatures of sponsors are required, with telephone numbers. The membership application to support candidacy as a Full member must be completed in its entirety.

ASSOCIATE Any person who is qualified, by virtue of training and experience, and is actively involved in toxicology through administration, teaching, research, or safety assessment functioning as a scientist or professional and who has, at a minimum, an earned baccalaureate degree from a recognized college or university, or who has training and experience in toxicology, shall be eligible for election as an Associate member. Associate members must have two years experience directly related to toxicology. Associate membership must be supported by two Full members of the College. The sponsors of an Associate member may represent the same institution/organization as the candidate. Signatures of sponsors are required, with telephone numbers. The membership application to support candidacy as an Associate member must be completed in its entirety. Associate members may upgrade their membership status to Full membership upon completing a membership application for Full status and submitting it through the Executive Director for approval by the Membership Committee.

STUDENT Any student engaged in studies leading to a degree in the field of toxicology or a field impinging upon toxicology shall be eligible for Student membership upon recommendation of their academic advisor. Student members shall pay no membership fees, or other assessments (excluding the Annual Meeting registration fee) but may not vote or hold elective office. Student members shall not receive the College's Journal, unless purchased annually.