No. Reserves and bailout rigs are considered 'life-saving' devices. They are designed primarily for reliability, and have to pass testing standards. They are required to be inspected and packed by a licensed rigger within certain time periods. They have seals and packing cards. One of the purposes of the packing card is so that the user, the pilot, or other interested party (such as a drop zone owner or incident investigator) can check to make sure it is 'in date', and legal to use. Mains are considered 'sporting equipment', and do not have to meet those standards. Manufacturers can design them more for flight performance, which might affect their reliability. They don't require seals or cards. In the sport environment, mains might be used several times a day, or week, or however busy the jumper is. A card would be superfluous and impossible to keep up with. A main is supposed to be packed by either the user, a rigger, or someone 'under the supervision' of a rigger, which means someone a rigger approves. Military might be different. I'm not a rigger, so I'm not sure. Some military mains might have cards, but I've never heard of it, I don't think so. The idea would be that if there was an incident, they would want to know who packed it. But in any military operation, they would know which military loft the gear came from, and the loft would keep such records.