Brown adipose tissue (BAT) , also known as brown fat, is one of two types of fat humans and other mammals have-the other type is known as white or yellow fat. Human newborns and hibernating mammals have high levels of brown fat.Brown fat's main function is to generate body heat.rown adipose tissue (BAT) , also known as brown fat, is one of two types of fat humans and other mammals have-the other type is known as white or yellow fat. Human newborns and hibernating mammals have high levels of brown fat.
California law requires that mileage reimbursement be paid no matter what the persons wages are. A recent court decision allows mileage reimbursement be paid as wages, but it also must be annotated on pay records what portion of those wages are for reimbursement.
Non-Business Mileage Write-Offs. Some reimbursements are for non-business driving, but still qualify for a tax break. Travel for moving or medical reasons could be deducted or reimbursed at 23 cents per mile as of 2015. The rate for driving when performing charitable activities is set by law at 14 cents per mile.