Urgent Guidance on Documents to send to CIO

[anthcott@yahoo.com]

I have been nominated for immigration to Canada by Alberta province. However long back I had applied for immigration and my application was approved but could not immigrate within the 3 year in 5 year allowable period. I have already taken steps to relinquish my previous status so that I can reapply.  Should I include details of my relinquishment of previous status while sending my application package to CIO OR I should submit them later on when my application is sent to the necessary VISA office to process my application? Please guide as my nomination is close to expiry and need to decide soon. Thank you for all the help.