(a) An insurer may not terminate or suspend a contract with an appointed agent that has been in effect for at least two years unless the insurer provides written notice of the termination or suspension to the agent at least six months before the date the termination or suspension takes effect.
(b) A contract that replaces or revises a contract that has been in effect for at least two years is subject to this subchapter if there has not been a material change in the ownership of the agency.