Amend CSHB 300 (House committee printing) by adding the 
following appropriately numbered ARTICLE to the bill and 
renumbering subsequent ARTICLES of the bill appropriately:

ARTICLE ____.  K-9 LAW ENFORCEMENT VEHICLES
	SECTION ____.01.  Subchapter A, Chapter 821, Health and 
Safety Code, is amended by adding Section 821.005 to read as 
follows:
	Sec. 821.005.  HEAT ALARM SYSTEM IN K-9 LAW ENFORCEMENT 
VEHICLES.  (a)  In this section, "law enforcement agency" means:
		(1)  the Department of Public Safety;                                  
		(2)  the sheriff's department of a county; or                          
		(3)  the police department of a municipality.                          
	(b)  A law enforcement agency may equip each vehicle used in 
a K-9 law enforcement program with a heat alarm system that is 
activated when the vehicle stops running or the temperature in the 
vehicle's interior becomes dangerous to a police dog in the 
vehicle. The system when activated must:
		(1)  activate an audible alarm;                                        
		(2)  automatically lower the vehicle's rear windows; 
and             
		(3)  page the K-9 law enforcement officer.                             
	(c)  This section does not apply to an open-air vehicle used 
in connection with a K-9 law enforcement program.
	SECTION ____.02.  A vehicle used in a K-9 law enforcement 
program equipped with a heat alarm system on the effective date of 
this Act is not required to meet the standards under Section 
821.005, Health and Safety Code, as added by this Act, before 
January 1, 2011.