As TDG regulations can change (usually annually), you should always consult with the appropriate current TDG guide and documentation.
Only persons with current certification for TDG Air or TDG Ground (whichever way you are shipping) can actually offer the package for shipment (and sign the waybill). Please note that the shipper is ultimately responsible for correctly packaging and shipping the items.
Posted on our Sampling Instructions page is a document providing some guidance about how methanol vials should be packed for air or ground shipment (note again that the shipper is responsible for ensuring the shipment meets all TDG and other shipping requirements).