Visit 8 (12 Weeks Post-Quit). 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 30 minutes to complete. Participants randomized to the CM treatment will receive an additional payment if they self-report abstinence from smoking over the past 7 days and have an expired CO level of ≤ 6 ppm. Participants who do not attend will be contacted by phone to obtain their self-reported smoking status.