Chapter 90 of the General Laws is hereby amended by inserting after section 22I the following section:

Section 22J. 

(a)  As used in this section:

“child” means a person under the age of three.[]

“unattended” means alone or in a motor vehicle with a person under the age of thirteen.[]

(b)  A person shall not confine an unattended child in a motor vehicle in a manner that could reasonably be expected to threaten the health of the child due to exposure to extreme heat or cold.

(c)  After making reasonable efforts to locate a motor vehicle’s owner, a law enforcement officer or fire fighter may enter a motor vehicle by any reasonable means to protect the health and safety of an unattended child.  A law enforcement officer or fire fighter may enter the motor vehicle for the sole purpose of assisting the child and may not search the vehicle or seize items found in the vehicle unless otherwise permitted by law.

(d)  If the child must be removed from the area, a law enforcement officer or fire fighter who removes or otherwise retrieves an unattended child under this section shall leave written notice in a secure and conspicuous location on or in the motor vehicle bearing the officer's or fire fighter’s name and title and the address of the location where the child may be retrieved.

(e)  A law enforcement officer or fire fighter who removes or otherwise retrieves an unattended child from a motor vehicle under subsection (c), and the agency or municipality that employs the officer or fire fighter shall be immune from criminal or civil liability that might otherwise result from the removal.

(f)  After making reasonable efforts to locate a motor vehicle’s owner, a person other than a law enforcement officer or fire fighter shall not enter a motor vehicle to remove an unattended child to protect the health and safety of that child in immediate danger unless the person: (i) notifies law enforcement or calls 911 before entering the vehicle; (ii) determines that the motor vehicle is locked or there is no other reasonable means for exit and uses not more force than reasonably necessary to enter the motor vehicle and remove the child; (iii) has a good faith and reasonable belief, based upon known circumstances, that entry into the vehicle is reasonably necessary to prevent imminent danger or harm to the child; and (iv) remains with the child in a safe location in reasonable proximity to the vehicle until law enforcement or another first responder arrives.

(g)  A person who removes a child from a motor vehicle pursuant to subsection (f) shall be immune from criminal or civil liability that might otherwise result from the removal.

(h)  A violation of subsection (b) shall be a civil infraction punishable by a fine of not more than $150 for a first offense, by a fine of not more than $300 for a second offense and by a fine of not more than $500 for a third or subsequent offense.

(i)  Nothing in this section shall preclude prosecution under section 13L of chapter 265.[]

Chapter 265 of the General Laws is hereby amended by inserting after section 13L the following section:

Section 13L1/2

Whoever negligently leaves a child in a motor vehicle in violation of section 22J of chapter 90 and by such leaving causes serious bodily injury to the child shall be punished by imprisonment in the state prison for not more than 10 years or in the house of correction for not more than 2 ½ years.

For the purposes of this section, ''serious bodily injury'' shall mean bodily injury that results in a permanent disfigurement, loss or impairment of a bodily function, limb or organ, or a substantial risk of death.

For the purposes of this statute, “negligent” shall mean failing to use that degree of care which a reasonably prudent person would use under the circumstances.

Section 26 of Chapter 218 is hereby amended by inserting, after the words “sections thirteen K” in line 15, “13L1/2.”