You need to have the licenses to purchase any of the refrigerants you specify. Just the A/C Licenses is not enough. There is special training necessary to get the proper EPA permits to purchase and handle them.
repair liscence
You can account for the purchase of a liquor license by adding the cost of the license to your licensing fees when you file your taxes. You can also account for this purchase as a cost of operation purchase.
Are you required to be licensed or certified as a mechanical engineer?
Yes you need a valid state license to purchase any guns.
I don't know what "driver license insurance" is. Many companies offer automotive insurance, if that's what you mean.
can you purchase sudafed in tennessee with a valid mississippi drivers license
No, you do not need a special license to purchase commercial playgourd equipment.
It's for 1 computer license one time purchase
Virginia does not require a license to purchase a gun, nor to possess one. A Concealed Handgun License IS required to carry a concealed handgun in public places if you are not a law enforcement officer, or one of the few others permitted to carry concealed. If you are 21, can own a handgun legally, can pass a background check, and demonstrate that you have had adequate training in firearms, Virginia will issue a concealed handgun license.
No you cannot. A license is required.
Most home systems use r22 which requires a license to purchase. The only refrigerant available to the consumer is automotive r134a.
No you do not have to have a license to purchase a go-kart I have one and I bought it myself and don't have a license.