An agricultural lawyer is an environmental lawyer who focuses on the law as it related to agriculture. An agricultural lawyer may choose to specialize in a wide variety of fields, such as government enforcement and regulation of agricultural rules, environmental concerns, estate planning, land purchasing, and small business or corporate consultations. The laws regarding agriculture are frequently changed and updated as new environmental concerns arise, and state laws often vary depending on location. Because of this, many businesses consult agricultural lawyers in order to ensure that they are following the law in their agricultural practices. An agricultural lawyer may also assist people in starting new businesses or expanding their current agricultural operations. Additionally, agricultural lawyers are frequently used when legal disputes arise.