SINGAPORE, AM Best has revised the outlooks to negative from stable and affirmed the Financial Strength Rating of A- (Excellent) and the Long-Term Issuer Credit Rating of 'a-' (Excellent) of Police Health Plan Limited (PHP) (New Zealand). The Credit Ratings (ratings) reflect PHP's balance sheet strength, which AM Best assesses as very strong, as well as its adequate operating performance, neutral business profile and appropriate enterprise risk management. In addition, the ratings factor in a neutral impact from the company's ultimate ownership by the New Zealand Police Association (NZPA). Source: BERNAMA News Agency