**Exhibit 31.2**

**CERTIFICATIONS(continued)**

I, William J.Begley Jr., certify that:

1.                 I have reviewedthis annual report on Form 10-K of Safety Insurance Group, Inc.;

2.                 Based on myknowledge, this report does not contain any untrue statement of a material factor omit to state a material fact necessary to make the statements made, inlight of the circumstances under which such statements were made, notmisleading with respect to the period covered by this report;

3.                 Based on myknowledge, the financial statements, and other financial information includedin this report, fairly present in all material respects the financialcondition, results of operations and cash flows of the registrant as of, andfor, the periods  presented in thisreport;

4.                 The registrant’sother certifying officers and I are responsible for establishing andmaintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and15d-15(e)) and internal control over financial reporting (as defined inthe Exchange Act Rules 13a-15(f) and 15d-15(f)) for theregistrant and have:

a)               Designed suchdisclosure controls and procedures, or caused such disclosure controls andprocedures to be designed under our supervision, to ensure that materialinformation relating to the registrant, including its consolidatedsubsidiaries, is made known to us by others within those entities, particularlyduring the period in    which this reportis being prepared;

b)              Designed suchinternal control over financial reporting, or caused such internal control overfinancial reporting to be designed under our supervision, to provide reasonableassurance regarding the reliability of financial reporting and the preparationof financial statements for external purposes in accordance with generallyaccepted accounting principles;

c)               Evaluated theeffectiveness of  the registrant’sdisclosure controls and procedures and presented in this report our conclusionsabout the effectiveness of the disclosure controls and procedures, as of theend of the period covered by this report based on such evaluation; and

d)              Disclosed in thisreport any change in the registrant’s internal control over financial reportingthat occurred during the registrant’s most recent fourth fiscal quarter thathas materially affected, or is reasonable likely to materially affect, theregistrant’s internal control over financial reporting; and

5.                 The registrant’sother certifying officers and I have disclosed, based on our most recentevaluation of internal control over financial reporting, to the registrant’sauditors and the audit committee of registrant’s board of directors:

a)               All significantdeficiencies and material weaknesses in the design or operation of internalcontrol over financial reporting which are reasonably likely to adverselyaffect the registrant’s ability to record, process, summarize and reportfinancial information; and

b)              Anyfraud, whether or not material, that involves management or other employees whohave a significant role in the registrant’s internal control over financialreporting.
| /s/ WILLIAM J. BEGLEY, JR.                          |     |
|----------------------------------------------------------|----------|
| William J.  Begley, Jr.                             |     |
| *Vice  President, Chief Financial Officer and Secretary* | * * |
| *(Principal  Financial Officer)*                         | * * |

 

March 1, 2007

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