Amend CSHB 55 (house committee printing) as follows:                         
	(1)  On page 1, between lines 22 and 23, insert:                               
	(b-1)  A municipality, county, or other political 
subdivision that enforces this section shall post a sign that 
complies with the standards described by this subsection at the 
entrance to each school crossing zone in the municipality, county, 
or other political subdivision.  The department shall adopt 
standards requiring that a sign required to be posted under this 
subsection inform an operator that:
		(1)  the use of a wireless communication device is 
prohibited in the school crossing zone; and
		(2)  the operator is subject to the fine described by 
Subsection (f) if the operator uses a wireless communication device 
in the school crossing zone.
	(2)  On page 2, strike lines 3-14 and substitute:                              
	(d)  It is an affirmative defense to prosecution of an 
offense under this section that:
		(1)  the wireless communication device was used to make 
an emergency call to:
			(A)  an emergency response service, including a 
rescue, emergency medical, or hazardous material response service;
			(B)  a hospital;                                                      
			(C)  a fire department;                                               
			(D)  a health clinic;                                                 
			(E)  a medical doctor's office;                                       
			(F)  an individual to administer first aid 
treatment; or            
			(G)  a police department; or                                          
		(2)  a sign required by Subsection (b-1) was not posted 
at the entrance to the school crossing zone at the time of an 
offense committed in the school crossing zone.
	(3)  On page 2, between lines 21 and 22, insert:                               
	(f)  An offense under this section is a misdemeanor 
punishable by a fine of:
		(1)  not more than $25 for the first offense; and                      
		(2)  not more than $50 for each subsequent offense.