(a) Pay and allowances for officers and enlisted personnel of the National Guard for drill, encampment or other duty for training prescribed or ordered by the federal government shall be such as are provided by the laws of the United States.

(b) Officers and enlisted personnel of the National Guard in active service of the state shall receive the same pay and allowances, in accordance with their rank and service, as are prescribed for the Armed Forces of the United States: Provided, That no member of the National Guard shall receive base pay of less than $100 per day while he or she is in active service of the state.

(c) Notwithstanding any of the provisions of this article, members of the National Guard may, with their consent, perform without pay, or without pay and allowances, any duties prescribed by section thirteen of this article pursuant to competent orders therefor: Provided, That necessary expenses may be furnished such personnel within the discretion of the Adjutant General.