The Comma That Costs 1 Million Dollars (Canadian)

What is the cost of bad puctuation? It can be much higher than you would think from a story from the New York Times

The dispute between Rogers Communications of Toronto, Canada’s largest cable television provider, and a telephone company in Atlantic Canada, Bell Aliant, is over the phone company’s attempt to cancel a contract governing Rogers’ use of telephone poles. But the argument turns on a single comma in the 14-page contract. The answer is worth 1 million Canadian dollars ($888,000).

The dispute is over this sentence: “This agreement shall be effective from the date it is made and shall continue in force for a period of five (5) years from the date it is made, and thereafter for successive five (5) year terms, unless and until terminated by one year prior notice in writing by either party.”

The regulator concluded that the second comma meant that the part of the sentence describing the one-year notice for cancellation applied to both the five-year term as well as its renewal. Therefore, the regulator found, the phone company could escape the contract after as little as one year.