Cereal by ICS 67.060. Cereal A cereal is any of the edible components of the grain (botanically, a type of fruit, called a caryopsis) of cultivated grass, composed of the endosperm, germ, and bran. Cereal grains are grown in greater quantities and provide more food energy worldwide than any other type of crop and are therefore staple crops. Edible grains from other plant families, such as buckwheat (Polygonaceae), quinoa (Amaranthaceae) and chia (Lamiaceae), are referred to as pseudocereals. In their natural, unprocessed, "whole grain" form, cereals are a rich source of vitamins, minerals, carbohydrates, fats, oils, and protein. When processed by
Wood-burning stove comply with the Clean Air Act in "smoke control areas", an exempt appliance or fuel must be used. The United States Clean Air Act requires that wood stoves be certified by the Environmental Protection Agency (EPA). These devices meet a particular emissions standard of no more than 7.5 grams per hour for non-catalytic wood stoves and 4.1 grams per hour for catalytic wood stoves. Washington State has stricter requirements of a maximum of 4.5 grams per hour. However, the EPA has had no mandatory emission limits for pellet stoves, indoor or outdoor wood boilers, masonry stoves and certain types of