When you're monitoring a Supply Arrangement, the Authority to Offer (ATO) is the mechanism that kicks off actual competition for specific work. Think of it as the second stage of procurement: suppliers already made it onto the pre-qualified list, and now they're competing against each other for your particular requirement. It's not a standing offer where pricing is fixed upfront—it's a call-up that invites fresh proposals from that vetted pool.
How It Works
Here's the thing: a Supply Arrangement doesn't commit the government to buying anything or guarantee suppliers any minimum volume of business. According to the Supply Manual Chapter 3.2, an SA simply establishes a pool of pre-qualified suppliers who can be invited to bid on specific requirements within the scope of the arrangement. When a department has an actual need, they issue an Authority to Offer to those qualified suppliers, asking for pricing and proposals tailored to that specific requirement.
The process involves two distinct authorities. The SA authority—often PSPC—establishes and administers the overall arrangement through a Request for Supply Arrangement (RFSA) process. But when you issue an ATO for your specific need, your own contracting authority takes over. You handle the solicitation, evaluation, and resulting contract. In practice, this means Treasury Board departments can use established arrangements like the Task-Based Professional Services SA without going back to PSPC for every individual contract. Your procurement shop runs the show from ATO to contract award.
The competitive element is what distinguishes this from a standing offer. With a standing offer, pricing and terms are locked in at the outset—you just call it up when needed. Simple. An ATO under a Supply Arrangement invites suppliers to compete again, which makes sense when your requirements can't be fully defined in advance. A DND requirement for engineering services might look quite different from what SSC needs, even if both fall under the same professional services arrangement.
Key Considerations
- No guaranteed work: Suppliers on the arrangement have no entitlement to receive ATOs or win contracts. You can issue to all qualified suppliers or just a subset, depending on the requirement and SA terms.
- Separate contracting authority: The entity that established the SA isn't necessarily involved in your specific procurement. Your procurement shop owns the ATO process and any resulting contract issues.
- Scope limitations: Your ATO must fall within the defined scope of the Supply Arrangement. Step outside those boundaries and you're conducting an unauthorized procurement, even if you're using pre-qualified suppliers.
- Different evaluation criteria: While suppliers met minimum qualifications to get on the SA, your ATO can apply additional evaluation criteria specific to your requirement—experience with similar projects, proposed methodology, regional presence, whatever matters for your context.
Related Terms
Supply Arrangement, Standing Offer, Request for Supply Arrangement (RFSA), Call-up, Methods of Supply, Task Authorization
Sources
- Supply Manual - Chapter 3.2 - Methods of Supply: Standing Offers and Supply Arrangements
- Procurement Review Practice Applications - Chapter 5: Methods of Supply
- Task-Based Professional Services Supply Arrangement
When you see an ATO hit the wire, remember you're watching the actual buying decision unfold, not just the establishment of a vendor list. That's where the real competitive intelligence lives.