A member of the legislature while traveling without the State on official legislative business and when authorized by the presiding officer of the respective house, shall receive an allowance to cover all personal expenses, such as board, lodging, and incidental expenses but not travel expenses. The allowance under this section shall be set at a single rate that will:
The allowance shall be in addition to the allowance that the member may be entitled to receive under section 24-2.
HRS § 24-5