Electric wheelchairs are typically classified into different classes based on their design, capabilities, and intended use. The main classes of electric wheelchairs are:

Class 1: Manual wheelchairs that can be propelled by the user or an attendant. They are not considered to be electrically powered wheelchairs and are not subject to the same regulations.

Class 2: Electrically powered wheelchairs that have a maximum speed of 4 mph (6.4 km/h) and are intended for use on pavements and roads with a speed limit of no more than 4 mph.

Class 3: Electrically powered wheelchairs that have a maximum speed of 8 mph (12.9 km/h) and are intended for use on roads with a speed limit of up to 8 mph. They are also known as "powered wheelchairs" or "mobility scooters".

Class 4: Electric Racing Wheelchairs

Division 1: Stock

1.1: Standard Division - Designed for novice racers or those who want to compete at a recreational level. Speeds are limited to 6-8 mph (9.6-12.9 km/h), and the wheelchairs must meet specific weight and size restrictions.

1.2: Developmental Division - Designed for racers who want to compete at a more competitive level but are still in the developmental stage of their racing career. The wheelchairs must still meet specific size and weight restrictions, but there are no restrictions on speed or performance.

1.3: Advanced Division - Designed for experienced racers who want to compete at a high level of competition. There are no restrictions on speed or performance, but the wheelchairs must still meet specific weight and size restrictions.

Division 2: Modified

2.1: Manual Modification Division - Designed for racers who want to use manual wheelchair frames with electric power systems added on. These modifications must be within specific size, weight, and performance restrictions.

2.2: Electric Modification Division - Designed for racers who want to use electric wheelchairs that have been heavily modified for high-performance racing. These modifications can include changes to the motor, wheels, and suspension systems, as well as modifications to the frame and seating. There are no restrictions on size, weight, or performance, but all modifications must meet safety requirements and be approved by the racing officials.

2.3: Open Division - Designed for racers who want to use any type of electric racing wheelchair, including those with modified and custom-built frames. There are no restrictions on size, weight, or performance, but all wheelchairs must meet safety requirements and be approved by the racing officials.

Class 5: Stand-Up Electric Wheelchairs for Sports

Division 1: Standard

1.1: Tennis Division - Designed for stand-up tennis play. Wheelchairs must have specific seat heights and widths, and be equipped with adjustable backrests and sideguards. There are no restrictions on speed or performance.

1.2: Basketball Division - Designed for stand-up basketball play. Wheelchairs must meet specific size and weight restrictions, and have specific configurations for the front and rear wheels. There are no restrictions on speed or performance.

1.3: Multi-Sport Division - Designed for use in a variety of stand-up sports, such as floor hockey and rugby. Wheelchairs must meet specific size, weight, and safety requirements, and be adaptable for use in different sports.

Division 2: Modified

2.1: Customized Division - Designed for athletes who require custom-designed stand-up electric wheelchairs to suit their specific needs. All modifications must meet safety requirements and be approved by the sport officials.

2.2: Open Division - Designed for athletes who want to use any type of stand-up electric wheelchair, including those with modified and custom-built frames. There are no restrictions on size, weight, or performance, but all wheelchairs must meet safety requirements and be approved by the sport officials.

Who controls the classifications of electric wheelchairs?

The classifications of electric wheelchairs are typically determined and regulated by national or regional government agencies responsible for road safety and mobility aids.

In the United States, for example, the classifications of electric wheelchairs are regulated by the Food and Drug Administration (FDA) through its Center for Devices and Radiological Health (CDRH). The CDRH is responsible for setting standards and regulations for medical devices, including electric wheelchairs, to ensure their safety and effectiveness.

In Europe, the classifications of electric wheelchairs are regulated by the European Union (EU) through the European Committee for Standardization (CEN). The CEN sets standards for medical devices, including electric wheelchairs, to ensure their safety, performance, and interoperability across the EU.

It's important to note that regulations and standards for electric wheelchairs may vary by country, and it's always best to check with local authorities for specific regulations in your area.