Police verification for PR (required, residence, application)

[cpail]

Hi,

I am about to apply for a Permanent residence card of Canada from the United States. I am an Indian s/w engrr and have travelled to countries on projects.
Can anyone who has gone thru the process tell me whether I have to submit the police verification of those countries at the application stage or can it be provided later on and within what time?...

Thanks a lot for the responses in advance.

[Cornerguy1]

Police verification(s) needs to be provided with your application.

Please consult the Document Check List included with your application package to ensure you include all required material. Failure to provide all documents will result in your application being returned.