EXHIBIT 31.2

Certification Pursuant to Rules13a-14 and 15d-14
of the 1934 Securities Exchange Act

I, Ralph Izzo, certify that:

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|1. | I have reviewed this
  Quarterly Report on Form 10-Q of Public Service Electric and Gas Company;                                                                                                                                                                                                                                                 
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|2. | Based on my
  knowledge, this report does not contain any untrue statement of a material
  fact or omit to state a material fact necessary to make the statements made,
  in light of the circumstances under which such statements were made, not
  misleading with respect to the period covered by this report;                               
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|3. | Based on my
  knowledge, the financial statements, and other financial information included
  in this report, fairly present in all material respects the financial
  condition, results of operations and cash flows of the registrant as of, and
  for, the periods presented in this report;                                                  
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|4. | The
  registrants other certifying officer(s) and I are responsible for
  establishing and maintaining disclosure controls and procedures (as defined
  in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control
  over financial reporting (as defined in Exchange Act Rules 13a-15(f) and
  15d-15(f)) for the registrant and have:
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|   | (a)                                                                                                                                                                                                                                                                                                                                               | Designed such disclosure
  controls and procedures, or caused such disclosure controls and procedures to
  be designed under our supervision, to ensure that material information
  relating to the registrant, including its consolidated subsidiaries, is made
  known to us by others within those entities, particularly during the period
  in which this report is being prepared;
|   |                                                                                                                                                                                                                                                                                                                                                   |                                                                                                                                                                                                                                                                                                                                                                                         
|   | (b)                                                                                                                                                                                                                                                                                                                                               | Designed such internal
  control over financial reporting, or caused such internal control over
  financial reporting to be designed under our supervision, to provide
  reasonable assurance regarding the reliability of financial reporting and the
  preparation of financial statements for external purposes in accordance with
  generally accepted accounting principles;       
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|   | (c)                                                                                                                                                                                                                                                                                                                                               | Evaluated the
  effectiveness of the registrants disclosure controls and procedures and
  presented in this report our conclusions about the effectiveness of the
  disclosure controls and procedures, as of the end of the period covered by
  this report based on such evaluation; and                                                                                             
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|   | (d)                                                                                                                                                                                                                                                                                                                                               | Disclosed in this report
  any change in the registrants internal control over financial reporting that
  occurred during the registrants most recent fiscal quarter that has
  materially affected, or is reasonably likely to materially affect, the
  registrants internal control over financial reporting; and                                                                  
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|5. | The
  registrants other certifying officer(s) and I have disclosed, based on our
  most recent evaluation of internal control over financial reporting, to the
  registrants auditors and the audit committee of the registrants board of
  directors (or persons performing the equivalent functions):                                       
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|   | (a)                                                                                                                                                                                                                                                                                                                                               | All significant
  deficiencies and material weaknesses in the design or operation of internal
  control over financial reporting which are reasonably likely to adversely
  affect the registrants ability to record, process, summarize and report
  financial information; and                                                                                                       
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|   | (b)                                                                                                                                                                                                                                                                                                                                               | Any fraud, whether or not
  material, that involves management or other employees who have a significant
  role in the registrants internal control over financial reporting.                                                                                                                                                                                                          

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|----- | ---------------- |  | ---------------------------------------
|Date: | August 1,
  2007 |  | /s/ Ralph Izzo                         
|      |                  |  |                                        
|      |                  |  | Ralph Izzo                             
|      |                  |  | Public Service Electric and Gas Company
|      |                  |  | Chief Executive Officer                

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