The government says more time is needed for testing of call-taking software and geographic information systems.
The government says the service will now come into effect early next year.
A new, 75-cent fee will be added to every phone line as of March 1 as part of the service.
Call centres will be based in St. John's and Corner Brook.
Former St. John's fire chief Mike Dwyer has been named executive director of NL 911. (VOCM)