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2 October 201922 minute read

Prompt payment and adjudication have arrived in Ontario

Ensure your organization is ready for the transition

Howard Krupat leads DLA Piper's Canadian construction dispute practice and served on the Province of Ontario's Advisory Committee for the review of the Construction Lien Act.

In this article:

How do the transition provisions work?
The lien modernization provisions
Prompt payment and adjudication
Ontario Dispute Adjudication for Construction Contracts (“ODACC”)‎
A Construction Act checklist


The second phase of Ontario’s Construction Act reform has finally taken effect - as of October 1, 2019. Ontario ‎construction contracts that meet the applicable transition test will now be governed by the new prompt payment ‎and adjudication regime in the province. In addition, the Authorized Nominating Authority (“’ANA”) responsible for ‎administering and overseeing the adjudication of construction disputes has now been established under the ‎name, “Ontario Dispute Adjudication for Construction Contracts” or “ODACC”.‎

This bulletin is an updated and supplemented version of a summary we published in April 2019, which takes into ‎account these most recent developments. Please also look out for a further update on similar proposals and ‎legislation across the country, which will be posted shortly.‎

As originally published, this bulletin is organized to first review the changes to Ontario’s construction lien regime ‎under the Construction Act and to then describe the new prompt payment and adjudication system. In other ‎words, we will first canvass revisions to a familiar system and then outline the radical changes that are sure to ‎impact the administration of payments and the resolution of disputes on almost all construction projects in ‎Ontario. Some readers may therefore want to skip ahead - right to the section on prompt payment and ‎adjudication. However, an understanding of the Construction Act’s transition provisions, as described below, is ‎also critical.‎

As a refresher then, the amendments to the old Construction Lien Act have given us a dramatically different piece ‎of legislation – the Construction Act. For ease of reference, it is convenient to divide the Construction Act ‎changes into two buckets:‎

  1. the lien modernization provisions; and
  2. prompt payment and adjudication.

Subject to the application of the Construction Act’s transition provisions, the lien modernization provisions took ‎effect on July 1, 2018, while the prompt payment and adjudication provisions took effect on October 1, 2019. ‎Due to the transition provisions, it is important to understand that for the foreseeable future, we will concurrently ‎have: (a) contracts governed by the old Construction Lien Act; (b) contracts governed by the lien modernization ‎provisions; and (c) contracts governed by both the lien modernization provisions and the prompt payment and ‎adjudication provisions.‎

How do the transition provisions work?

Sorting out which version of the Construction Act applies to a particular construction contract requires a careful analysis. The key factors are as follows:1

  1. ‎The old Construction Lien Act, as it existed on June 30, 2018, will apply where‎:
    1. a contract2 for the improvement3 was entered into before July 1, 2018; or
    2. ‎a “procurement process4”‎ ‎for the improvement was commenced before July 1, 2018 by the owner.‎
  2. ‎‎If neither of the above conditions is met, the lien modernization provisions will apply.  Put another way, the ‎lien modernization provisions apply in all situations where the procurement process was commenced on July ‎‎1, 2018 or later or, where there was no procurement process, the contract was entered into on July 1, 2018 or ‎later; and
  3. ‎For the prompt payment and adjudication regime, the key date is October 1, 2019.  If a procurement ‎process was commenced on or after October 1, 2019, or a contract that does not involve a procurement ‎process was entered into on or after October 1, 2019, both the lien modernization provisions and the prompt ‎payment and adjudication provisions will apply.‎

If you encounter a scenario where you are not sure which version of the Act applies, it is important to: (i) seek ‎legal advice; and (ii) follow whichever requirements are the most conservative or stringent. For example, if you ‎are a lien claimant who is not sure which version of the Act to follow, it is much safer to assume the 45 day ‎deadline for preserving a lien under the old Act applies, rather than counting on the 60 day deadline under the ‎revised Act. If you are a contractor who is not sure whether the new trust accounting rules (described below) are ‎applicable to you, the safer approach would be to assume that you are governed by the more stringent ‎accounting requirements prescribed by the revised Act.‎

The lien modernization provisions

The lien modernization provisions are detailed and technical in nature, so there is no pithy way to capture them in a short paragraph. However, the key revisions include the following:

  1. ‎the deadline to preserve a construction lien has been increased from 45 days to 60 days from the applicable ‎trigger date‎;
  2. ‎the deadline to perfect a lien by commencing an action has been increased from 45 days after the last date ‎the lien could have been preserved to 90 days after the last date the lien could have been preserved‎;
  3. holdback release is now mandatory unless the payer first publishes, within the time prescribed by the Construction Act, a notice specifying the amount the payer refuses to pay;
  4. ‎provided the proper contractual arrangements are in place and the threshold contract price prescribed by ‎regulation is met, holdback will be permitted to be released either on an annual basis or on a phased basis, ‎for appropriate projects;5
  5. permissible forms of holdback include a letter of credit or holdback release bond, in a prescribed form;
  6. ‎termination of a contract is formally recognized as one of the trigger dates to be considered in determining ‎the applicable construction lien deadline.  Further, where a contract is terminated, a notice of termination is ‎required to be published in a form prescribed by the Construction Act regulations‎;
  7. ‎landlords who provide tenant inducements under a lease have exposure to construction lien claims, to a ‎maximum of ten percent of the value of the inducement‎;
  8. ‎the formulas for calculating both substantial performance and completion of a contract have been modified ‎to account for inflation since the Construction Lien Act was implemented in 1983‎;
  9. ‎the maximum amount of costs required to be posted to vacate a construction lien has been increased from ‎‎$50,000 to $250,000, in addition to the amount of the lien itself‎;
  10. ‎rigorous accounting requirements have been implemented for trust funds received by a contractor or ‎subcontractor on a project to ensure that all such funds can be traced (although dedicated project accounts ‎will not be necessary).  Further, it is specifically noted that the depositing of funds into a single account in ‎accordance with the applicable provisions does not constitute a breach of trust‎;
  11. ‎as of October 1, 2019, construction liens for municipal projects are required to be served rather than ‎registered, as was already the case for projects owned by the Provincial Crown‎;6
  12. ‎specific accommodations have been made to fit project structures commonly known as alternative financing ‎and procurement (AFP) or public-private-partnership (P3) projects more clearly into the Construction Act, with ‎deeming provisions establishing which contracts within the P3 structure are to be used for determining, ‎among other things, holdback obligations, substantial performance and lien rights; and
  13. ‎a significant change that doesn’t really fall within the “lien modernization” category provides that contracts for ‎public projects which exceed a value prescribed by regulation require both a performance bond and a labour ‎and material payment bond.7

As a practical matter, the foregoing can be reduced even further into the following key elements:

  1. the critical and unforgiving deadlines for which construction liens are known have changed and the new deadlines must be understood;
  2. there are important new requirements and forms that must be followed and used with respect to contract and holdback administration and the enforcement of lien rights;
  3. there is an onus on contractors and subcontractors to ensure they are in compliance with strict new accounting obligations; and
  4. almost all public contracts require both performance and labour and material payment bonds.8

While the lien modernization provisions are essential to understand from an operational perspective, our ‎experience thus far is that the impact they have had on contract drafting is limited, particularly when taking into ‎consideration that all contracts and subcontracts are deemed to be amended as may be necessary to conform ‎to the Construction Act.‎

However, the same argument does not apply in the context of prompt payment and adjudication.  First, many ‎existing forms of contract have detailed provisions addressing both payment requirements and dispute ‎resolution provisions.  Leaving these provisions in place on the basis that these contracts will be deemed to ‎conform to the Construction Act will only create confusion.  Second, there are certainly strategies that industry ‎participants at all levels of the construction pyramid have been employing in drafting and negotiating contracts ‎to manage the new processes and risks introduced by prompt payment and adjudication.‎

Prompt payment and adjudication

Prompt payment and adjudication are, to a certain extent, directly linked.  Although adjudication captures much more than payment disputes, adjudication can also be considered the “teeth” for ensuring compliance with the Construction Act’s prompt payment requirements.  As described below, there are circumstances in the context of prompt payment where the use of adjudication to resolve a dispute is mandatory.  However, there are also circumstances where a party may choose to use adjudication.  However, in all circumstances, where one contracting party properly initiates an adjudication process, the other contracting party is bound by that process and is not entitled to opt out.

The essence of the prompt payment provisions is a set of statutory deadlines for payments on construction projects, all built around the submission by a contractor to an owner of a “proper invoice”.  The Construction Act prescribes the minimum information that a proper invoice must include, leaving it to the parties to add additional requirements, provided that these contractual requirements do not conflict with the legislation.  In addition, the Construction Act crucially permits parties to agree within their contract upon the schedule for the submission of proper invoices but notably also prescribes a default requirement for proper invoices to be submitted monthly if the contract doesn’t state otherwise.  This means, for example, that it is open to parties to incorporate a milestone schedule for the delivery of proper invoices into their contract. Again, however, if there is no contractual schedule for the delivery of proper invoices, the parties will be bound by the monthly schedule prescribed by the Construction Act.

On the other hand, there is no freedom to contract out of the deadlines that flow down the construction pyramid for payment once a proper invoice is delivered.  Subject to the right to deliver a notice of non-payment, as depicted in the graphics below, payments must be made within the prescribed deadlines.  Even a contractual provision that makes the giving of a proper invoice contingent upon payment certification or the prior approval of an invoice by an owner is prohibited by the Construction Act.9

The following graphics can be used as a guide to show the basic operation and statutory deadlines for prompt payment‎:

Tier One: Contractor10  and Owner

Tier Two: Contractor* and Subcontractor11 12


It is also useful in reviewing the prompt payment timelines to demonstrate how the new holdback deadlines in the owner/contractor relationship under the lien modernization provisions fit into the picture, using for simplicity a scenario where the applicable holdback trigger date is the publication of a certificate of substantial performance (as opposed to the trigger dates that are applicable where there is no certificate of substantial performance or where these events come earlier than substantial performance – being completion, abandonment or termination of the contract):

A failure to abide by the prompt payment provisions triggers various remedies, including the requirement to pay ‎a prescribed rate of interest and the potential referral of the dispute to adjudication.  Notably, if the basis for a ‎contractor deciding not to pay its subcontractor is the contractor’s receipt of a notice of non-payment from the ‎owner, or if the basis for the contractor refusing to release holdback to the subcontractor is the receipt of a ‎notice of non-payment of holdback from the owner, then the contractor is required to refer its dispute with the ‎owner to adjudication.‎

The Construction Act's new adjudication process, described below, is anticipated to have a sweeping impact upon the way typical construction contract disputes are resolved.


Adjudication is essentially an interim dispute resolution process that is binding upon the parties.  The outcome of ‎adjudication is a “determination” made by the appointed adjudicator.  Subject to the very limited ability to have ‎the adjudicator’s determination set aside through a judicial review process,13 ‎ ‎ the parties must then abide by that ‎decision and carry on with the project.  Should either party wish to re-litigate the issue through a court action or ‎arbitration down the road, they are entitled to do so.  However, one of the objectives for the Construction Act ‎changes is for such a scenario to be rare.‎

The following is a summary of the adjudication process:

  1. ‎a party to a contract or subcontract may refer to adjudication a dispute with the other party to that contract or ‎subcontract‎;
  2. ‎matters may only be adjudicated by a person who has been identified as a qualified adjudicator by the ANA ‎which, as described above, has now been established as ODACC.  A further discussion of ODACC is set out ‎below.  As set out in the current regulations, adjudicators will come from a broad range of fields of expertise ‎within the construction industry including accounting, architecture, engineering, quantity surveying, project ‎management, arbitration and law;‎
  3. ‎adjudication is only available for disputes relating to matters that are prescribed by the statute or the ‎regulations issued thereunder or otherwise agreed by the parties.  However, the prescribed list is sufficiently ‎broad such that, in our view, most disputes that may arise on a construction project will likely be captured;‎
  4. ‎parties are permitted to set out an adjudication procedure in their contract, if it meets the minimum ‎requirements of the statute.  However, they are not permitted to prospectively name an adjudicator in their ‎contract – this step is to be taken when the adjudication process is commenced;‎
  5. ‎an adjudication will be commenced by the issuance of a notice of adjudication.  The notice is required to ‎contain prescribed information, including the name of a proposed adjudicator;‎
  6. ‎if the named adjudicator does not consent to be appointed within four days of a notice of adjudication being ‎served, then the party giving the notice shall request that the ANA (ODACC) appoint an adjudicator.  The ‎ANA shall then have seven days to do so, subject to the adjudicator’s consent;‎
  7. ‎within five days of the adjudicator being appointed, the party initiating the adjudication shall provide the ‎adjudicator with the documents it intends to rely upon for the adjudication;‎
  8. ‎the party who receives the notice of adjudication may respond in writing, by a deadline to be determined by ‎the adjudicator;‎
  9. ‎while the adjudicator has a fair bit of latitude to design the adjudication procedure and ODACC has already ‎pre-designed recommended processes that can be used for disputes of varying amounts and complexity, ‎the adjudicator is required to render a decision within 30 days after receiving the initiating party’s documents.  ‎That decision is binding until a further determination of the same subject matter is made in a court process or ‎arbitration (which is anticipated to be rare);‎
  10. ‎the 30-day deadline can be extended, but only with the written consent of both parties and the adjudicator;‎
  11. a party who is required by the adjudicator’s determination to make a payment shall do so within ten ‎days of receiving the decision, failing which interest will be payable and a contractor or subcontractor ‎who does not receive payment shall be entitled to suspend their work, with compensation for costs ‎incurred in so doing;
  12. ‎although there are no restrictions on the authority of a court or arbitrator to rule on matters that were already ‎the subject of an adjudication, there are only narrow circumstances in which a determination can successfully ‎be set aside.  The requisite process is a judicial review, which first requires a motion for leave.  That motion ‎must be brought within 30 days of the adjudicator’s determination being communicated to the parties; and 
  13. the determination of an adjudicator may be enforced in court.

The timeline for adjudication can also be illustrated with a simple graphic:


As described in the above summary, adjudication is a quick process with significant consequences.  While ‎adjudication has been subject to criticisms that its outcomes will constitute “rough justice” and that some parties ‎will seek to leverage the tight timelines to their advantage, the objective is for issues to be resolved as they arise ‎so that they will not aggregate and result in lengthy and expensive litigation or arbitration proceedings.  Further, ‎recourse will nonetheless remain available to construction liens, arbitration and litigation.  In fact, it is generally ‎understood that Ontario will be the only jurisdiction around the world to have both a robust construction lien ‎regime and adjudication running concurrently.  Accordingly, it is difficult to accurately predict to what extent ‎adjudication will reduce traditional forms of construction dispute resolution in Ontario.  The one certainty is that it ‎is essential for your organization to be prepared for these changes.‎

Ontario Dispute Adjudication for Construction Contracts (“ODACC”)

On July 18, 2019, the Government of Ontario announced the appointment of ADR Chambers as the ANA.  ADR ‎Chambers then established ODACC as the name for the ANA.  ODACC commenced operation on October 1, ‎‎2019 and has created a website that can be accessed here.  The ODACC website ‎conveniently sets out everything from the training and application processes for adjudicators to the fees that will ‎be set where the parties and the adjudicator are unable to agree upon fees, to five recommended pre-designed ‎adjudication processes. ‎

There are some common misconceptions about adjudication that can easily be addressed.  For example, an oral ‎hearing is not a requirement for an adjudication.  To the contrary, disputes that are not complex and involve ‎relatively modest amounts can easily be handled in writing, through the exchange of brief written submissions.  In ‎addition, as noted above, an adjudicator does not have to be a lawyer.  Nor is a party required to retain a lawyer ‎to represent its interests in an adjudication process, although that would be advisable for complex disputes ‎involving a significant amount at issue.‎

In other words, if all goes according to plan, adjudication is expected to facilitate the early, simple and cost-‎effective resolution of routine construction disputes.  At the same time, the rules have been designed with the ‎intention to accommodate complex disputes involving large claims.  While still dispensing with the evidentiary ‎rules and formal processes of a full trial or arbitration hearing, adjudications for these complex disputes would ‎likely involve representation by counsel and could include an oral hearing, site visits and, where appropriate, the ‎retainer of experts.

Be prepared: A Construction Act checklist

It should now be apparent that the Construction Act changes will impact every facet of the industry and that the time has arrived to move from understanding what they are about to preparing your organization to implement them.

The following checklist is a starting point to assist you in preparing for the full range of Construction Act changes:

✔ critically, develop a decision tree for determining which version of the Construction Act applies. When in doubt, always take a conservative approach

✔  consider how your organization may benefit from the new flexibility for holdback release that can be negotiated into a contract, particularly on lengthy and complex projects

✔  consider the use of holdback release security and any financing arrangements that must be made to facilitate their use

✔  for public projects, ensure necessary bond arrangements are in place

✔  for contractors and subcontractors, ensure accounting systems comply with new trust provisions

✔  implement a clear system for monitoring applicable construction lien and holdback release deadlines

✔  ensure the relevant individuals in your organization are familiar with the new form that has been prescribed for a written notice of a lien

✔  ensure the relevant individuals in your organization are trained on the new thresholds for calculating substantial performance and the circumstances in which a portion of a contract can be “hived off” to have substantial performance certified early

✔  on every project, diarize holdback release dates and the deadline for delivering a notice of non-payment of holdback

✔  consider how current and future project structures may be impacted by Construction Act changes.  For example, will your contracts need to be revised where milestone payments or other payment schedules are used, in order to ensure they comply with the Construction Act?

✔  where custom contracts are used, ensure your terms and conditions are properly updated to reflect the Construction Act changes and manage the new processes that are prescribed.  For example, how will your organization approach the content, timing and delivery of “proper invoices”?

✔  where standard form contracts are used, ensure your supplementary conditions are updated to accommodate prompt payment

✔  update accounting systems to clearly diarize new mandatory prompt payment deadlines

✔  if your organization is a payer, ensure all internal approvals and administrative procedures that are required for payment release facilitate compliance with the prompt payment deadlines

✔  review consulting contracts and corresponding payment certification function to ensure they facilitate compliance with the prompt payment deadlines

✔  familiarize your organization with the prescribed forms that will be both received and used for all prompt payment requirements, including notices of non-payment

✔  train employees on prompt payment deadlines and steps that must be taken where invoices are in dispute, noting that a missed deadline can result in a stranded risk. For example, a contractor who receives a notice of non-payment from an owner but doesn’t deliver a notice of non-payment to a subcontractor will be required to make payment downstream, despite not receiving payment from the owner

✔  train key project employees on when and how adjudication process must be used and may be used, including essential deadlines

✔  familiarize your organization with the rules prescribed by the Construction Act and its regulations, as well ‎as ODACC and its processes, so that you will be sufficiently nimble to initiate and ‎respond to adjudication processes when the need arises

✔  implement a clear system for tracking claims, whether your organization is the claimant or respondent, in order to ensure that you will be ready to proceed with adjudication when necessary and you will not be taken by surprise when a notice of adjudication is received

This checklist is not intended to be comprehensive and will inevitably require refinement depending upon the role ‎of your organization in the construction pyramid and the nature of the projects in which you are involved.  ‎However, these critical changes have arrived and it is essential for your organization to now take the necessary ‎steps to ensure you are ready.‎ 

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This article provides only general information about legal issues and developments, and is not intended to provide specific legal advice. Please see our disclaimer for more details.

[1] See Section 87.3 of the Construction Act for a full understanding of how the transition provisions work.‎

[2] For the purpose of the Construction Act, a “contract” is an agreement entered into directly with a project owner for an ‎‎“improvement” (which is, very loosely, the Construction Act’s term for a construction project).‎

[3] See above.‎

[4] The Construction Act includes a very specific definition of a procurement process. It means: (a) a request for qualification; (b) a ‎request for quotation; (c) a request for proposals; or (d) a call for tenders (S