(Jonathan Hayward/Canadian Press)

Dec. 17, 2004 — U.S. Congress passes the Intelligence Reform and Terrorism Prevention Act of 2004, which includes mandates that the U.S. develop and implement a plan requiring all foreign nationals entering the U.S. to have a passport.. The Act is based on recommendations made by the 9/11 Commission set up to examine the attacks of Sept. 11, 2001.

April 5, 2005 — The U.S. State Dept. announces all citizens of Canada, the U.S., Mexico and Bermuda will need passports by Jan. 1, 2007 to enter the U.S. by air; and by Jan. 1, 2008 to enter by land and sea.

April 5, 2005 — Groups on both sides of the border express concern the plan could hurt industries such as manufacturing and tourism. Roughly $1.5-billion worth of goods cross the Canada-U.S. border daily.

April 15, 2005 — U.S. President George W. Bush orders a review of the proposed plan, telling an audience of newspaper editors that he heard about the plan in the news. "When I first read that in the newspaper about the need to have passports, particularly the day-crossings that take place ... I said, 'What's going on here?'," Bush said.

June 21, 2005 — U.S. Ambassador to Canada David Wilkins suggests the 2008 land/sea passport deadline is not set in stone. "That's still a long time from now and that's being looked at and talked about," Wilkins said.

Oct. 12, 2005 — Manitoba Premier Gary Doer and North Dakota Governor John Hoeven issue a joint news release asking for a delay in the passport rule, saying it will hurt both their economies.

March 31, 2006 — Bush acknowledges passport concerns raised by Prime Minister Stephen Harper at Mexico summit, but says he is committed to implementing the plan.

April 2006 — U.S. Secretary of Homeland Security Michael Chertoff dismisses suggestions that the 2008 land/sea requirement would be delayed, saying "we have ample precedent and ample ability to meet the deadline."

May 16, 2006 — U.S. Senate unanimously passes legislation delaying implementation of the land/sea border plan until June 1, 2009.

July 6, 2006 — During a meeting at the White House, Harper asks Bush to extend the land/sea passport deadline. Bush says he is bound by what Congress decides.

Sept. 18, 2006 — Washington extends passport deadline for air entry from Jan. 1, 2007 to Jan. 8, 2007 to accommodate travellers throughout the Christmas holiday season.

Nov. 31, 2006 — Ottawa receives 355,474 passport applications in the month of November, an increase of 90,000 requests from the previous November.

Nov. 26, 2006 — Washington extends passport deadline for air entry from Jan. 8, 2007 to Jan. 23, 2007. Department officials say they missed an internal deadline.

Jan. 23, 2007 — Canadians flying into the U.S. require a passport.

April 4, 2007 — Passport Canada warns on its website that Canadians could wait up to 10 weeks to receive a passport. It usually takes 10-20 business days. Officials say the department spent an extra $5 million to pay for extra staffing to cope with the high demand.

June 8, 2007 — Washington temporarily suspends law requiring Americans to carry passports when re-entering the U.S., placating angry summer travellers who didn't receive passports because of a massive backlog of applications. The suspension lasts four months.

June 15, 2007 — U.S. House of Representatives votes to delay land/sea passport requirement.

June 20, 2007 — Chertoff announces a postponement of the land/sea passport requirement from Jan. 1, 2008 at least until the summer 2008. He blames a backlog of passport applications.

June 26, 2007 — Eastern Canadian premiers and New England governors pass a motion urging Congress to delay the land/sea passport deadline.

Aug. 29, 2007 — Ottawa asks for passport deadline extension for Canadian seniors, status Indians, people with a Canadian seafarer's identity document and emergency workers.

Nov. 15, 2007 — Chertoff confirms Canadians can use enhanced drivers' licences when entering the U.S. by land. Such licences don't yet exist, but several provinces have publicly expressed interest in developing them.

Dec. 20, 2007 — U.S. Congress passes a year-end budget bill that includes a Democrat-sponsored measure delaying the land/sea passport requirement until June 1, 2009 at the earliest. The delay will buy "breathing room to try to find better and more sensible answers for border security, especially on the Northern Border," said Vermont Democratic Senator Patrick Leahy, who sponsored the budget measure.

Dec. 26, 2007 —Bush approves the bill on Air Force One while travelling to his Texas ranch to mark the New Year.

Dec. 26, 2007 — Public Safety Minister Stockwell Day issues a statement saying he was pleased by the delay, but remained concerned about the future impact of the plan. " I remain concerned about the impact the United States' [Western Hemispheres Travel Initiative] will have on the economy and border communities of both countries," he said.

Jan. 21, 2008 — British Columbia launches an enhanced driver's licence program with 521 voluntary applicants.

Jan. 31, 2008 — The Western Hemispheres Travel Initiative takes effect, meaning that, legally, Canadians are required to provide proof of citizenship when crossing the U.S. border by land or sea. However, American customs officials say the rule won't be enforced until June 1, 2009. The delay comes after 19 U.S. senators wrote Homeland Security Secretary Michael Chertoff asking to continue the system of allowing Canadians and Americans to cross land and sea borders by presenting any government-issued photo ID, such as a driver's licence, and making an oral declaration of citizenship.

Jan. 19, 2009 — Manitoba begins accepting applications for its enhanced identification card program.

March 16, 2009 — Quebec launches its enhanced driver's licence program.

May 5, 2009 — Applications begin for Ontario's enhanced driver's licence program.

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