Whenever the National Guard of the District of Columbia shall be ordered to duty in case of riot, tumult, breach of the peace, or whenever called in aid of the civil authorities, all enlisted men who do duty shall be paid at the rate equivalent to 2 times the pay of enlisted men of the regular Army of like grade. Commissioned officers who do duty shall be entitled to and shall receive the same pay and allowances as commissioned officers of like grade of the regular Army. Each mounted officer and enlisted man shall be paid a reasonable per diem compensation for each horse actually furnished and used by him; provided, that when the National Guard of the District of Columbia is called into actual service of the United States the officers and enlisted men shall, during their time of service, be entitled to the same pay and allowances as are or may be provided by law for the regular Army.

There shall be allowed for the general expenses of the militia such sums as may be necessary for the rental and furnishing of offices for headquarters, stationery, postage, printing and issuing orders, advertising orders, providing necessary blanks for the use of the militia, the cost of storing, caring for, and issuing all public property, and such other contingent expenses, not herein specially provided for, as may be estimated and appropriated for; the accounts for which shall be certified to by the officer receiving the service or property charged for, approved by the Commanding General, and paid in the manner provided in § 49-801.

During the annual encampment, or when ordered on duty to aid the civil authorities, the National Guard shall be furnished with subsistence stores, of the kind, quality, and amount allowed and prescribed by the Army. Such stores shall be issued from the stores and supplies appropriated for the use of the Army, upon the approval and by the direction of the Secretary of the Army, to the Commanding General upon his requisitions for the same.

The Commanding General shall annually transmit to the Mayor of the District of Columbia an estimate of the amount of money required for the next ensuing fiscal year to pay the expenses authorized by this title, and the said Mayor shall include the same in his annual estimates of appropriations for the District; and all moneys appropriated to pay the expenses authorized by this title shall be disbursed in accordance with law.

All moneys collected on account of deductions made from the pay of any officer or enlisted man of the National Guard of the District of Columbia, on account of government property lost or destroyed by such individual shall be repaid into the United States Treasury to the credit of the officer of the militia of the District of Columbia who is accountable to the United States government for such property lost or destroyed; provided, that there may be paid to all commissioned officers (without discrimination, and in lieu of the limited pay authorized by this section) an allowance to be used by them in the purchase and maintenance of clothing and equipment; provided further, that after March 2, 1911, all moneys collected on account of deductions made from the pay of any officer or enlisted man of the National Guard of the District of Columbia for or on account of any violation of the regulations governing said National Guard, and all moneys which, by reason of the absence of officers or enlisted men from duly ordered assemblies or other duty, are not expended for pay of troops, shall be held by the Commanding General of the militia of the District of Columbia, who is authorized to expend such moneys for necessary clerical and general expenses of the service, heretofore or hereafter incurred, including law books and books of reference, or for the pay of troops, other than government employees; and for all moneys so expended the Commanding General shall make an accounting in like manner as for the appropriation disbursed for pay of troops; provided further, that after March 2, 1911, any of the moneys appropriated for the District of Columbia Militia may be used to supplement specific appropriations or allotments which may be found insufficient for the purposes for which made, and authority is hereby given to supplement the regular ration by purchase of such additional articles of subsistence as may be deemed necessary; provided further, that after March 2, 1911, the Commanding General of the District of Columbia Militia is hereby authorized to make such deductions from any pay of any officer or enlisted man derived from appropriations or allotments made under the provisions of § 1661, United States Revised Statutes or other federal enactments as may be necessary to reimburse the United States or the District of Columbia for public property lost, destroyed, or damaged by such individual.