Yes, you can technically be a pilot and still smoke, as there is no specific FAA or international aviation regulation that prohibits pilots from using tobacco products off-duty. However, smoking significantly impacts the "High-Fidelity" medical certification process. Smoking is a major risk factor for cardiovascular disease, hypertension, and lung issues—all of which are checked during a pilot's mandatory Class 1 or Class 2 medical exams. If smoking leads to a condition like COPD or coronary artery disease, a pilot's medical certificate can be revoked. Furthermore, smoking on board an aircraft is strictly prohibited for both passengers and crew, and as of February 2026, many airlines have introduced direct 30-day bans for any crew member caught smoking in the cockpit or lavatories. While it won't prevent you from getting your wings, maintaining a smoke-free lifestyle is a high-value necessity for long-term career longevity and meeting the high-fidelity health requirements of the modern aviation industry.