(1) Conditions for Allowance. – Any member in service classified in Group 1, Group 2 or Group 4 or any member in service classified in Group 3 to whom the provisions of subdivision (2) of section 26 are not applicable, who is unable to perform the essential duties of the member's job and that such inability is likely to be permanent before attaining the maximum age for the member's group by reason of a personal injury or violent act injury sustained or a hazard undergone as a result of, and while in the performance of, the member's duties at some definite place and at some definite time on or after the date of becoming a member or prior to such date while any provision of this chapter relating to noncontributory pensions was applicable to the member, without serious and willful misconduct on the member's part, upon the member's written application on a prescribed form filed with the board and the member's respective employer or upon such an application by the head of the member's department after a hearing, if requested, as provided for in subdivision (1) of section 16 and subject to the conditions set forth in said section 16 and in this section, shall be deemed retired for an accidental disability as of a date which shall be specified in such application and which shall be not less than 15 days nor more than 4 months after the filing of such application but in no event later than the maximum age for the member's group. Except as provided for in subdivision (3), no such retirement shall be allowed unless such injury or violent act injury was sustained or such hazard was undergone within 2 years prior to the filing of such application or, if occurring earlier, unless written notice thereof was filed with the board by such member or on the member's behalf within 90 days after its occurrence. No retirement under this subsection shall be allowed unless the board, after a review of the evidence it deems appropriate, and after a review by the commission, pursuant to the provisions of section 21, and including in any event on examination by the regional medical panel provided for in subdivision (3) and including a certification of such incapacity by a majority of the physicians on such medical panel, shall find that such member is unable to perform the essential duties of the member's job and that such inability is likely to be permanent and that the member should be so retired; provided, however, that no retirement due to a violent act injury shall be allowed unless the board, after a review of the evidence it deems appropriate, and after a review by the commission, pursuant to section 21, and including in any event on examination or re-examination by the regional medical panel provided for in subdivision (3) and including a certification of such incapacity by a majority of the physicians on such medical panel, shall find that such member is physically unable to perform the essential duties of the member's job because of a violent act injury and that such inability is likely to be permanent and that the member should be so retired. Any member who was injured while a member of a retirement system established in any governmental unit other than that by which the member is presently employed, and who has complied with the provisions of this section as to notice, or whose case falls under subdivision (3), shall file such application with the retirement board of the unit where the member is presently employed. Such board shall secure a statement of facts and records, which it shall be the duty of the retirement board of the first governmental unit to furnish, and on which it shall be entitled to make recommendations.

Prior to the determination of a retirement under this section, a member shall submit to the retirement board a written statement authorizing release of information from the federal internal revenue service and the department of revenue relative to the annual gross earned income of the member pursuant to an agreement between the federal internal revenue service, the department of revenue and the public employee retirement administration commission in accordance with section 91A.

(2) Amount of Allowance. — Upon retirement under the provisions of this section a member shall receive an accidental disability retirement allowance to become effective on the date the injury was sustained or the hazard or account of which he is being retired was undergone, or on the date six months prior to the filing of the written application for such retirement with the board and his respective employer, or on the date for which he last received regular compensation for his employment in the public service, whichever date last occurs. Payments under such allowance shall be made as provided for in sections twelve and thirteen and the continuance of payments shall be governed also by the provisions of section eight.

1. (a) The normal yearly amount of such allowance for any member classified in Group 1, Group 2, or Group 4, or for any member classified in Group 3 to whom the provisions of subdivision (2) of section twenty-six are not applicable, shall, subject to the provisions of paragraphs (b) and (c) of this subdivision, be equal to the sum of —
2. (i) A yearly amount of annuity equal to the yearly amount of the regular life annuity specified in clause (i) of Option (a) of subdivision (2) of section twelve;
3. (ii) A yearly amount of pension equal to 72 per cent of the annual rate of his regular compensation on the date such injury was sustained or such hazard was undergone, or equal to 72 per cent of the average annual rate of his regular compensation for the 12–month period for which he last received regular compensation immediately preceding the date his retirement allowance becomes effective, whichever is greater; provided, however, that if an individual was in a temporary or acting position on the date such injury was sustained or hazard undergone, the amount to be provided under this paragraph shall be based on the annual rate of regular compensation in his permanent position on the date such injury was sustained or such hazard was undergone, or the average annual rate of his regular compensation in his permanent position for the 12–month period for which he last received regular compensation immediately preceding the date his retirement allowance becomes effective, whichever is greater; provided, however, that for any employee who was not a member in service on or before January 1, 1988 or who has not been continuously a member in service since that date, the total yearly amount of the sum of such pension and the annuity as determined in accordance with clause (i) shall not exceed 75 per cent of the annual rate of regular compensation as determined in this paragraph; and provided further, that no individual who was a member in service on January 1, 1988, whose allowance is limited by the 75 per cent limitation as established in this paragraph, shall receive an amount of pension that is less than 72 per cent of such individual's regular compensation on January 1, 1988; and
4. (iii) A yearly amount of additional pension determined at the rate of three hundred and twelve dollars yearly for any surviving unmarried child of such member who is under age 18 or, if over that age and under age 22, is a full-time student at an accredited educational institution, or who was over said age and physically or mentally incapacitated from earning on the date of such member's retirement; provided, however, that in the state and teachers' systems and any other system electing to adopt the supplemental dependent allowance, the yearly amount of such additional pension shall be determined by the actuary as hereinafter provided. Such additional pension on account of any child shall be paid only so long as such child survives, remains unmarried and is under the age of eighteen or, if over said age, remains physically or mentally incapacitated from earning or, if over said age and under age 22, is a full-time student at an accredited educational institution. The words ''full-time student'' shall mean a child who is in full-time attendance in an accredited educational institution offering full-time courses of study equivalent to or higher than secondary school study. The words ''accredited educational institution'' shall mean any school, college, or university that is licensed, approved, or accredited, as the case may be, in the state in which it is located. Beginning July first, nineteen hundred and eighty-eight, the additional pension provided by the supplemental dependent allowance shall be fixed at a rate of four hundred and fifty dollars for each eligible child. Beginning July first, nineteen hundred and eighty-nine, the supplemental dependent allowance rate shall be increased by an amount equal to the percentage increase of the cost of living determination made by the general court for such year pursuant to section one hundred and two. Systems may adopt the supplemental dependent allowance by an affirmative vote of the retirement board, ratified by the chief executive officer and legislative body as defined in paragraph (c) of subdivision (8) of section twenty-two. Adoption of the supplemental allowance by any system may not be revoked.

5. (iv)

   1. (A) Notwithstanding clauses (i) to (iii), inclusive, a yearly amount of pension for any firefighter, any call, volunteer, auxiliary, intermittent or reserve firefighter, any call, volunteer, auxiliary, intermittent or reserve emergency medical services provider who is a member of a police or fire department and who is not subject to chapter 152, any police officer, any auxiliary, intermittent, special, part-time or reserve police officer or any municipal or public emergency medical technician or licensed health care professional who is unable to perform the essential duties of the member's job by reason of a violent act injury, paid monthly, shall be equal to 100 per cent of their regular compensation, including all applicable benefits and stipends, that the member was earning on the date of such violent act injury, as defined in section 1. The annual amount of pension payable to such member shall be equal to the regular rate of compensation, which the member would have been paid had the member continued in service at the grade held by the member at the time of their retirement until their death or reaching mandatory retirement age, whichever comes first; provided, however, that, if the member reaches the mandatory retirement age, the member shall be entitled thereafter to 80 per cent of the average annual rate of compensation paid to the member in the previous 12 months, including any cost of living increases, as defined in sections 102 and 103. Upon retirement, the member shall receive a lump sum payment from the applicable retirement board equal to the member's total accumulated retirement deductions. In the event that the member predeceases their spouse, the member's spouse shall be entitled to 75 per cent of the member's annual pension, paid monthly, as long as such spouse shall live; provided, however, that, when the member would have reached the mandatory retirement age, the member's spouse shall continue to be entitled to 75 per cent of the member's annual pension, including any cost of living increases, as defined in sections 102 and 103, that the member would have received upon reaching the mandatory retirement age; and provided further, that if a beneficiary is eligible for benefits under this section and under option (c) of section 12, the beneficiary shall elect to receive either a benefit under option (c) or a benefit pursuant to this section but shall not be eligible for both benefits. If the member and the member's spouse predecease their children, the member's surviving unmarried children, if any, who are under age 18, or under age 22 and are full-time students at an accredited educational institution, or who are over age 18 and physically or mentally incapacitated from earning income on the date of such member's retirement, shall be entitled to receive a pension of equal proportion, paid monthly, which shall total 75 per cent of the amount of the pension payable to the member at the time of their death. When a child no longer meets the qualifications for receipt of a pension allocation under this section, said child's pension allocation shall cease and any remaining qualified children shall continue to receive the same amount each received before any child's allocation ceased. The words ''full-time student'' and ''accredited educational institutions'' shall have the same meanings as defined in clause (iii).
   2. (B) Any member eligible to receive a pension under this clause shall be indemnified for all hospital, medical and other healthcare expenses, not otherwise covered by health insurance, related to treatment of injuries that have been or may be incurred after the date of the member's retirement as a result of the injuries sustained by the member relating to the violent act injury while in the performance of the member's duties.
   3. (C) Notwithstanding the hours and earnings limitations of section 91 or 91A or any other general or special law to the contrary, the annual earnings of a member receiving benefits under this clause from employment in the service of the commonwealth or a county, city, town, district or authority, including as a consultant or independent contractor or as a person whose regular duties require that their time be devoted to the service of the commonwealth, county, city, town, district or authority during regular business hours, may equal up to 1/2 the amount of their retirement allowance without refund penalty. Such member shall not be eligible for employment under Groups 3 and 4 of the retirement system while receiving benefits for accidental disability retirement outlined under this clause. A member who is receiving benefits under this clause may be employed by a private entity or in the private sector without refund penalty; provided, however, that their service is not devoted to the commonwealth or a county, city, town, district or authority. Nothing in this section shall prohibit a member under this clause, or such member's eligible spouse or children, from receiving additional retirement benefits not required by this clause.
   4. (b) For purposes of determining the normal yearly amount of any pension in accordance with the provision of this section or of section nine on account of the retirement or death of any member classified in Group 4 as a call fireman or reserve policeman, who was performing the duties of a call fireman or reserve policeman at the time the injury was sustained or the hazard was undergone which resulted in the granting of such pension, the annual rate of regular compensation of such member shall be considered to be the same as that of permanent firemen or policemen of lowest rank and grade, as the case may be, in the city or town in which he was employed; provided, that if there are no such permanent firemen or policemen, then the annual rate of his regular compensation shall be considered for such purposes to be seven thousand five hundred dollars.
   5. (c) The total normal yearly amount of the retirement allowance of any member as determined in accordance with the provisions of this section shall not exceed the greater of the annual rate of his regular compensation on the date such injury was sustained or such hazard was undergone, and the average annual rate of his regular compensation for the twelve-month period for which he last received regular compensation immediately preceding the date his retirement allowance becomes effective, anything in this section to the contrary notwithstanding.
   6. (d) Payments to a member retired under the provisions of this section who is incarcerated for having been convicted of a felony committed on or after the effective date of this paragraph shall cease for the period of such member's incarceration. Under no circumstances shall such payments be recoverable by such member after such period of incarceration.
   7. (e) Any member of Group 1 or Group 2 or Group 4, who is a veteran as defined in section 1, shall receive an additional yearly retirement allowance of $15 for each year of creditable service or fraction thereof, but the total amount of this additional yearly retirement allowance shall not exceed $300. This paragraph shall only take effect upon its acceptance by the majority vote of the board of a system, subject to the approval of the legislative body. For purposes of this paragraph, legislative body shall mean in the case of a city the city council in accordance with its charter, in the case of a town the town meeting, in the case of a county the county retirement board advisory council, in the case of a district the district members, in the case of an authority the governing body and in the case of a regional retirement system, the regional retirement board advisory council. The teachers' and state employees' retirement systems shall be considered to have accepted this paragraph.

(6) Final Determination on Accidental Disability Applications.— Under this section the board shall make a final determination of such accidental disability application within one hundred and eighty days of the date of filing of such application except in the following instances:—

1. (1) the board, upon filing a written request outlining the specific circumstances for such a waiver, is granted an extension for a final determination by the commission or his designee; or
2. (2) the regional medical panel is unable to complete its examination and review and issue a written decision of the medical aspects of the case and is granted an extension by the commission or his designee.
3. (7) Critical Incident Stress Management. – Any firefighter, any call, volunteer, auxiliary, intermittent or reserve firefighter, any call, volunteer, auxiliary, intermittent or reserve emergency medical services provider who is a member of a police or fire department and who is not subject to chapter 152, any police officer, any auxiliary, intermittent, special, part-time or reserve police officer or any municipal or public emergency medical technician following any incident involving exposure to actual or threatened death, serious injury or sexual violence as set forth in the most recent version of the Diagnostic and Statistical Manual of Mental Disorders, or any other incident reasonably warranting a critical incident stress management debriefing, as determined by an emergency service provider certified by the Massachusetts Peer Support Network or the International Critical Incident Stress Foundation, Inc., shall receive notice of critical incident stress management debriefing programs, including the location and times for the program and contact information.