Smoking surcharge for health plan

[French]

Has anyone implemented a smoking surcharge for health plan coverage? We have been asked to consider this and I have explained some of the requirements due to HIPAA. I have several concerns/questions the first of which are (1) obtaining the information and maintaining privacy for employees and/or dependents, (2) if we were to require employees to enroll in a smoking cessation program to avoid the surcharge, are we responsible for the cost of the program? I would prefer to work on wellness in the organization with a positive spin with incentives for healthy behaviors - plus I would assume the smokers would question why we aren't targeting those with other unhealthy behaviors.

Any thoughts would be wonderful.