What will happen to my marked ballot? Your questions answered

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Elections Canada estimates close to 5.8 million people voted at advance polls between Sept. 10-13 ahead of millions of othervoters who'll casttheir ballots on Sept. 20.

Theagency also says it expects to receive a larger amount of mail-in special ballots than in the previous election.

Some readers have asked CBC News what happens to their marked ballots.

• Have an election question for CBC News? Email ask@cbc.ca. Your input helps inform our coverage.

Where do the marked ballots stay before being counted?

If you vote onelection day, the ballots sit inside the box until the polls close andpolling station staff take them out and start counting by hand.

If you voted in advance, the ballots should have beentransferred from your polling stationto an Elections Canadareturning office in the same riding. Depending on their geographical size, someridingshave more than one returning office.

If you cast a special ballot in-person at an Elections Canada office in your home riding by Sept. 14, or you have a ballot that youget to that officeby mail or in-personby Sept. 20, it will also be transferred to the riding's returning office.

But if you cast the special ballot in-person at an Elections Canada office outside your home riding, or if you mail the ballot from outside your home riding, it will go to the Elections Canadaheadquarters in Ottawa.

Special ballots cast by Canadian Armed Forces members, as well as those cast by people in jail or prisonare also mailed to the Ottawa headquarters.

Elections Canada says all votes will be kept at secure locations before counting begins, and ballots may be placed in other facilities when necessary.

• Find out who's ahead in the latest polls with our Poll Tracker.

• Get live federal election results and analysis on Sept. 20 withCBCNews.ca,CBC TV,GemandCBC Radio. Find full details on how to watch, listen and readhere.

When will the ballots start to be counted?

Ballots cast on the election day will be counted at polling stations once the polls close.

Advance poll ballots may start to be counted as early as one hour before closing of the polls, but that's at each returning officer's discretion.

Special ballots mailed to Elections Canada's Ottawa headquarters could be counted as early as 14 days before the election day if the volume of ballots justifies this decision.

But those special ballots mailed to or dropped off at Elections Canada offices in home ridings won't be counted on election night. That's because the agency says local returning officers mustverify the voter's identity indicated on the ballot's outer envelope before counting can begin.

The integrity verification process for these locally cast special ballots will start on Sept. 21,and may take up to 24 hours, the agency says.

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When will ballot counting be complete?

Elections Canada says its website will keep updating preliminary results sent from returning officers to the agency's headquartersuntil all votes are counted.

It may take two to five days to count all the special ballots cast by voters in their home ridings.

Returning officers normallyfinish validating election resultsin the week after the polling day.

But ballots may have to be recounted with the presence of a provincial superior court judge if the leading candidates win the same number of votesor if their vote counts differ by less than one thousandth of the total votes cast in the riding.

Elections Canada will publish the final voting results several months after the election day.

Where will the ballots go after the election is over?

All ballots across the country will be shipped to Elections Canada's Ottawa headquarters after all judicial vote recounts are finished and will be stored in its distribution centre for 10 years as mandated by the Librarian and Archivist of Canada.

Marked ballots may be retrieved from storage upon request of a court judge, but Elections Canada officials saythis has never happened to the best of theirknowledge.

Where will the ballots go after the storage period ends?

After their decade-long retention, all marked ballots along with unused ballots and other paper-form election materials stored in the distribution centre are to be loaded to a metal-sealed truck operated by recycling services provider Cascadesand transported to the company's facility, less than 10 kilometres away, for immediate shredding.

Cascades spokesperson Hugo D'Amours says the company will recycle the shreds into other paper-based products, such as paper towels and tissue papers. Some shreds may be sold to other companies.

"Manufacturing paper products or packaging products out of recycled material is eco-friendly," he said. "We use seven times less water than the average of the Canadian industry to manufacture the same product."

After disposal of election materials, Cascades will return to Elections Canada the broken truck seal and a record of disposal which includes the seal's number, date and quantity of disposal, and signatures of the approving officer and the truck driver.

Do you have a question about the federal election? Send them to ask@cbc.ca or leave it in the comments. We're answering as many as we can leading up to election day.