FCC 公布解释, 家用电器使用或产生数位逻辑讯号技术超过9KHz, 是被归类需符合FCC Part 15 B, Class B 要求, 但一些家用电器可以免除该测试, 这类电器为洗涤衣物类、家用清洗用类、烹煮类及用水与空调用类等。

详细的电器类别及产品如下所示：

免除测试电器

Exempt Cooking or Food Preparation Devices

Exempt Household Water and Air Conditioning Equipment

Refrigerators

Humidifiers Dehumidifiers

Stoves

Room Fan Heater

Bread makers

HVAC systems (*not including ) external thermostats)

Food warming pads

Water Heaters

Freezers

Room air-conditioners (window, floor. standing)

Juice extractors

Central Air-conditioners (Split-System)

Coffee Makers

Deep-fat fryers

Exempt Household Cleaning Devices

Exempt Appliances for Washing and Drying Clothes

Trash compactors

Washing machines

Vacuum cleaners

Clothes dryers

Irons

Rug cleaners

Dishwashers

Trash compactors

In-sink garbage disposals

需测试电器

Non Exempt Devices

External Thermostats*

Electric Blankets

Exercise Equipments

Paper Shredders

Hair Dryers

Bed Warmers

Heat Guns

Portable Personal Fan Heaters

Hair straighteners