SCUBA cylinder

Can I take SCUBA cylinder across a border? Yes in many places, with conditions. Of the (no rules indexed) country-rules we've indexed for SCUBA cylinder, 0 are allowed (often with limits), 0 are restricted (permit, declaration, or quantity cap), and 0 are prohibited outright. Customs rules depend on the destination, the purpose (travelling, posting, importing personally, or importing commercially), and the quantity.

Pressurised compressed-air or nitrox cylinder for SCUBA diving. Class 2.2 non-flammable gas. Pressurised cylinders forbidden in passenger baggage of any kind. SCUBA cylinders may be transported in checked baggage only when the cylinder valve is removed or the tank is verified empty (zero gauge pressure) and the inspection valve is open. Many airlines require a 'scuba-tank empty' tag attached at check-in. Commercial transport requires UN 1002 (compressed air) or UN 1066 (nitrogen) compliant packaging with hydro-test certificate within the validity period. Postal carriage is universally prohibited. Importation classified under HS 7311 (compressed-gas containers).

Common mistakes with SCUBA cylinder

• Assuming the rules at the origin apply at the destination — they don't. The destination customs authority is the binding rule.
• Travelling and posting are treated differently: an item you can carry may be prohibited by post (and vice versa).
• Personal vs commercial intent: above a quantity threshold, customs may treat your shipment as commercial regardless of intent.
• Undervaluing on the customs declaration to avoid duty — treated as fraud in most jurisdictions.
• Vague item descriptions on CN22/CN23 — biggest single cause of postal customs holds.
• Lithium batteries in checked baggage (must be in carry-on) or above the watt-hour limit without airline approval.
• Missing required certificates (phytosanitary, veterinary, CITES, prescription, product compliance).

Always verify against the destination's customs authority before acting. Not legal advice.

General notes