(a) Each member of the legislature shall receive:

1. per diem at the internal revenue service per diem rate for the City of Tallahassee for each day's attendance during each session of the legislature and the internal revenue service standard mileage rate for each mile traveled in going to and returning from the seat of government by the usual traveled route, once each session as defined by Section 3 of this Article.

2. per diem expense and mileage at the same rates as provided in Subsection (a)1 of this section for service at meetings required by legislative committees established by the legislature to meet in the interim between sessions; and

3. no other compensation, perquisite or allowance.

(b) Any day the legislature is in session and a member of the legislature is absent, that member shall receive no per diem.