shall be issued to those individuals who, in accordance with this Act, demonstrate the skills, knowledge, ability, and judgment that are necessary to operate a Class A community water supply in a manner that will provide safe, potable water for human consumption, as well as the skills, knowledge, ability, and judgment necessary to operate Class B, Class C, and Class D community water supplies in a manner that will provide safe, potable water for human consumption.

shall be issued to those individuals who, in accordance with this Act, demonstrate the skills, knowledge, ability, and judgment that are necessary to operate a Class B community water supply in a manner that will provide safe, potable water for human consumption, as well as the skills, knowledge, ability, and judgment necessary to operate Class C and Class D community water supplies in a manner that will provide safe, potable water for human consumption.

shall be issued to those individuals who, in accordance with this Act, demonstrate the skills, knowledge, ability, and judgment that are necessary to operate a Class C community water supply in a manner that will provide safe, potable water for human consumption, as well as the skills, knowledge, ability, and judgment necessary to operate a Class D community water supply in a manner that will provide safe, potable water for human consumption.

shall be issued to those individuals who, in accordance with this Act, demonstrate the skills, knowledge, ability, and judgment that are necessary to operate a Class D community water supply in a manner that will provide safe, potable water for human consumption.