Visit 9 (26 Weeks Post-Quit Follow-Up). Participants will complete self-report questionnaires on a laptop computer; and expired CO and weight will be measured in a private room to ensure confidentiality. Participants will receive a payment for completion of the in-person assessments, which will take approximately 40 minutes to complete. Saliva cotinine will also be measured via NicAlert test strips to provide additional evidence of abstinence. Participants who do not attend will be contacted by phone to obtain their self-reported smoking status.