National Interstate Corporation Announces 2008 Third Quarter Conference Call and Web Cast

RICHFIELD, Ohio, Oct. 10, 2008 (GLOBE NEWSWIRE) -- National Interstate Corporation announced today that the Company will release its 2008 third quarter results after the market closes on Thursday, October 30, 2008. The earnings release will be available shortly thereafter on the Company's investor relations website at http://invest.natl.com. In conjunction with the earnings release, third quarter results will be discussed via conference call at 10:00 a.m. Eastern Daylight Saving Time on Friday, October 31, 2008.

In regard to the earnings conference call, there are two communication modes available to listen to the call. Telephone access to the conference call and Q and A session will be available by dialing (888) 713-4205 and providing the confirmation code 67659075. Please dial in 5 to 10 minutes prior to the scheduled starting time. To pre-register for the conference call, go to https://www.theconferencingservice.com/prereg/key.process?key=PQEQ3FHTH and follow the instructions provided. The conference call will be broadcast live over the Internet. To listen to the call via the Internet or to access the archived web cast, access the Company's investor relations website at http://invest.natl.com and follow the instructions at the web cast link.

About National Interstate Corporation

National Interstate Corporation , founded in 1989, is a specialty property and casualty insurance holding company with a niche orientation and focus on the transportation industry. We differentiate ourselves by offering insurance products and services designed to meet the unique needs of targeted insurance buyers. Our products include insurance for transportation companies, alternative risk transfer or captive insurance programs for commercial risks, specialty personal lines consisting of insurance products focused primarily on recreational vehicle owners and small commercial vehicle accounts, and transportation and general commercial insurance in Hawaii and Alaska. We offer our insurance products through multiple distribution channels including independent agents and brokers, affiliated agencies and agent Internet initiatives. Our insurance subsidiaries are rated "A" (Excellent) by A.M. Best Company. Headquartered in Richfield, Ohio, National Interstate is an independently operated subsidiary of Great American Insurance Company, a property-casualty subsidiary of American Financial Group, Inc. .

CONTACT:  National Interstate Corporation
          Tanya Inama
          877-837-0339
          investorrelations@natl.com