Editing Texas Constitution talk:Article VIII, Section 7-a (section)

== add ? ==

Proceeds from the sale of agency salvage or surplus personal
property purchased with funds dedicated to highway purposes by
Texas Constitution article VIII, sections 7-a and 7-b are not
themselves constitutionally dedicated to highway purposes.
Accordingly, proceeds fi-om the sale of agency salvage or surplus
property that was purchased with revenues constitutionally dedicated
to highway purposes and sold on or after September 1’2003 may be
placed in the general revenue fund. 

https://www2.texasattorneygeneral.gov/opinions/opinions/50abbott/op/2004/pdf/ga0143.pdf