Fireworks laws in Michigan

(2) A person shall not sell consumer fireworks to a minor. A person that violates this subsection shall be ordered to pay a civil fine of not more than $1,000.00, or, for a second or subsequent violation of this subsection, a civil fine of not more than $2,500.00. For a second or subsequent violation, the department shall suspend the person's consumer fireworks certificate for 90 days beginning on the date a civil fine is ordered. The age of an individual purchasing consumer fireworks shall be verified by any of the following: (a) An operator's or chauffeur's license issued under the Michigan vehicle code, 1949 PA 300, MCL 257.1 to 257.923. (b) An official state personal identification card issued under 1972 PA 222, MCL 28.291 to 28.300. (c) An enhanced driver license or enhanced official state personal identification card issued under the enhanced driver license and enhanced official state personal identification card act, 2008 PA 23, MCL 28.301 to 28.308. (d) A military identification card. (e) A passport. (f) Any other bona fide photograph identification that establishes the identity and age of the individual.

Division 1.4 consists of explosives that present a minor blast hazard. Examples are common fireworks, toy caps, empty primed grenades, and some small arms ammunition.
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341.2 Mailability, Packaging, and Marking
Explosives are generally prohibited from being mailed under 18 U.S.C. § 1716. The following conditions apply for mailing Hazard Class 1 items:
International Mail : All explosives are prohibited.
Domestic Mail via Air Transportation: All explosives are prohibited.
Domestic Mail via Surface Transportation: Generally, explosives are prohibited, with exceptions for Division 1.4S toy propellant devices and safety fuses that have been approved by the director, Product Classification before mailing (refer to 214 for contact information). A shipping paper is required.

UPS Prohibited Items
Examples of items prohibited by UPS include, but are not limited to the following:
Shipments prohibited by law
Bank bills, notes or currency
Common fireworks

We do not accept for delivery:
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Fireworks
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FedEx accepts certain classes and divisions of hazardous materials for transport. Before you ship, please refer to the following list to ensure your packages contain only accepted hazardous materials.
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1.4 1
Explosives
1.4/Explosive 1.4
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1 Except fireworks.

§ 1500.17 Banned hazardous substances.
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(3) Fireworks devices intended to produce audible effects (including but not limited to cherry bombs, M-80 salutes, silver salutes, and other large firecrackers, aerial bombs, and other fireworks designed to produce audible effects, and including kits and components intended to produce such fireworks) if the audible effect is produced by a charge of more than 2 grains of pyrotechnic composition; except that this provision shall not apply to such fireworks devices if all of the following conditions are met:
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(8) Firecrackers designed to produce audible effects, if the audible effect is produced by a charge of more than 50 milligrams (.772 grains) of pyrotechnic composition (not including firecrackers included as components of a rocket), aerial bombs, and devices that may be confused with candy or other foods, such as “dragon eggs,” and “cracker balls” (also known as “ball-type caps”), and including kits and components intended to produce such fireworks except such devices which meet all of the following conditions:
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(9) All fireworks devices, other than firecrackers, including kits and components intended to produce such fireworks, not otherwise banned under the act, that do not comply with the applicable requirements of part 1507 of this chapter, except fireworks devices which meet all the following conditions: