Fireworks are not permitted to be sold, displayed for sale, or sold at retail in the State of Iowa. Sparklers, caps used in toy guns, snakes are not included in the definition of fireworks and are permitted. 

Listed below is a subsection of Chapter 727 of the Code of Iowa that deals with fireworks regulations:

727.2 Fireworks.
The term 'fireworks' includes any explosive composition, or combination of explosive substances, or article prepared for the purpose of producing a visible or audible effect by combustion, explosion, deflagration, or detonation, and includes blank cartridges, firecrackers, torpedoes, skyrockets, roman candles, or other fireworks of like construction and fireworks containing any explosive or flammable compound, or other device containing any explosive substance. The term 'fireworks' does not include goldstar-producing sparklers on wires which contain no magnesium or chlorate or perchlorate, flitter sparklers in paper tubes that do not exceed one-eighth of an inch in diameter, toy snakes which contain no mercury, or caps used in cap pistols.
A person, firm, copartnership, or corporation who offers for sale, exposes for sale, sells at retail, or uses or explodes any fireworks, commits a serious misdemeanor. However, the council of a city or a county board of supervisors may, upon application in writing, grant a permit for the display of fireworks by municipalities, fair associations, amusement parks, and other organizations or groups of individuals approved by the city or the county board of supervisors when the fireworks display will be handled by a competent operator, but no such permit shall be required by for the display of fireworks at the Iowa state fairgrounds by the Iowa state fair board, at incorporated county fairs, or at districts fairs receiving said aid. Sales of fireworks for such display may be made for that purpose only.
This section does not prohibit the sale by a resident, dealer, manufacturer, or jobber of such fireworks as are not prohibited by this section, or the sale of any kind of fireworks if they are to be shipped out of state, or the sale of use of blank cartridges for a show or the theater, or for signal purposes in athletic sports or by railroads or trucks, for signal purposes, or by a recognized military organization.
This section does not apply to any substance or composition prepared and sold for medicinal or fumigation purposes.

Individuals or groups can make an application for a competent operator to shoot fireworks displays. The process for obtaining a permit for such a display is as follows:

1. An application for fireworks display must be picked up at the Linn County Auditor's Office.
2. The completed application must be taken to the Fire Chief for the area where the show will be displayed. The Chief will request a site plan and detail on fire prevention and extinguishments measures.
3. The application must contain the following certification:
   1. Copy of the shooters pyrotechnic certification.
   2. Proof of insurance
4. The competed application must be approved by the Board of Supervisors.
5. Once approved, the Linn County Sheriff and the Fire Department should be notified shortly before the display begins. 

For more information regarding individuals or groups making an application for a competent operator to shoot fireworks displays, please read Chapter 37 of the City Code [1].

Any questions regarding fireworks can be referred to the Marion Fire Department [2] at 377-8237 or the State Fire Marshall's Office at (515) 281-5821. Questions about the fireworks display permit process can be addressed to the Linn County Auditor's Office at 892-5300.