(1)  On page 1, line 14, strike "After" and substitute "Not 
later than".
	(2)  On page 4, line 12, between the second comma and "or", 
insert "an original equipment manufacturer's remanufactured 
engine,"
	(3)  On page 9, line 3, strike "10,000 pounds or more" and 
substitute "greater than 8,500 pounds".
	(4)  On page 9, line 11, strike "____ [72]" and substitute 
"87.5 [72]".
	(5)  On page 9, line 21, strike "11.5" and substitute "9.5".     
	(6)  Insert the following appropriately numbered sections 
and renumber subsequent sections accordingly:
	SECTION __.  Subchapter H, Chapter 2155, Government Code, is 
amended by adding Section 2155.451 to read as follows:
	Sec. 2155.451.  VENDORS THAT MEET OR EXCEED AIR QUALITY 
STANDARDS.  (a)  This section applies only to a contract to be 
performed, wholly or partly, in an affected county, as that term is 
defined by Section 386.001, Health and Safety Code.
	(b)  The commission and state agencies procuring goods or 
services may:
		(1)  give preference to goods or services of a vendor 
that demonstrates that the vendor meets or exceeds any state or 
federal environmental standards, including voluntary standards, 
relating to air quality; or
		(2)  require that a vendor demonstrate that the vendor 
meets or exceeds any state or federal environmental standards, 
including voluntary standards, relating to air quality.
	SECTION __.  Subchapter Z, Chapter 271, Local Government 
Code, is amended by adding Section 271.907 to read as follows:
	Sec. 271.907.  VENDORS THAT MEET OR EXCEED AIR QUALITY 
STANDARDS.  (a)  In this section, "governmental agency" has the 
meaning assigned by Section 271.003.
	(b)  This section applies only to a contract to be performed, 
wholly or partly, in an affected county, as that term is defined by 
Section 386.001, Health and Safety Code.
	(c)  A governmental agency procuring goods or services may:             
		(1)  give preference to goods or services of a vendor 
that demonstrates that the vendor meets or exceeds any state or 
federal environmental standards, including voluntary standards, 
relating to air quality; or
		(2)  require that a vendor demonstrate that the vendor 
meets or exceeds any state or federal environmental standards, 
including voluntary standards, relating to air quality.
	(7)  Add the following appropriately numbered section and 
renumber subsequent sections accordingly:
	SECTION __. Section 386.101(6), Health and Safety Code, is 
amended to read as follows:
		(6)  "On-road diesel" means an on-road diesel-powered 
motor vehicle that has a gross vehicle weight rating of greater than 
8,500 [10,000] pounds [or more].