No call for proposal deadlines at this time.
All data is provided as-is from the data provider and they should be contacted if there are any errors found.
Government of Alberta Open Data as noted in the metadata is available at no cost through the data provider. Other data products are available for a fee as determined by the data provider.
In the context of this initiative, Open Data is data produced that can be freely used, re-used and redistributed by anyone in a legal manner. The only requirement for data use is to attribute to the data provider as defined in the metadata. The License is found here.
No, all data is available on the site at no-cost to the user.