Who is our report intended for?

This Sustainability Report is part of Enbridge’s commitment to timely and transparent disclosure to our shareholders and stakeholders.

The report communicates our approach and performance over the past year against our sustainability goals and priorities, as well as the key sustainability factors influencing our strategy, policies and operations going forward. Our Report is written with the following stakeholders in mind and to whom we hold ourselves accountable:

• associations and civil society groups;
• communities;
• customers;
• employees, contractors, unions, Board of Directors;
• environmental and other non-governmental organizations;
• governments and government regulatory bodies in Canada and the U.S.;
• individuals and organizations with whom we work to prepare for and respond to emergencies;
• investors;
• landowners;
• local businesses and industry;
• media;
• regulators;
• right-of-way communities; and
• suppliers.

Due to their distinct rights, we consider Indigenous groups to be separate from other stakeholder groups.

We prioritize, engage with and incorporate feedback from individuals and groups who live and work near, or who can affect or are affected by, our pipelines, power lines, operations and facilities. We also use criteria outlined in our integrated management system to ensure a consistent and rigorous approach to engagement across all of our projects and operations. For more information, please see the Stakeholder Engagement and Indigenous Engagement sections of this report.

We strive to be a trusted and respected member of the business community and the communities in which we operate. Throughout the year, we proactively engage with our diverse stakeholders in order to foster dialogue and support our sustainability goals and priorities. These ongoing engagements enable us to understand the issues most important to our stakeholders, and what and how we should report in order to align with their interests, needs and expectations.

What is the scope and boundary of our reporting?

Our 2017 Sustainability Report includes performance data from, and events that took place in, 2017. Notable among those events was the closing of Enbridge’s acquisition of Spectra Energy on February 27, 2017. Where possible, we have included data integrated across the assets and operations of the combined company. For years prior to 2017, data reflects Enbridge’s performance. Information on Spectra Energy’s sustainability performance for 2016 and prior is available at Enbridge.com

Our 2017 Sustainability Report covers only information on the assets that Enbridge operates and as noted, includes for 2017 those assets and operations acquired from Spectra Energy. The name “Enbridge” refers to our entire company (Enbridge Inc.), including our subsidiaries and affiliates. The terms "company," "we," "us," and "our" refer to Enbridge Inc. collectively. Where possible, the data we provide applies to Enbridge Inc. as a whole. However, instances where we report information pertaining to a specific business segment (for example, Liquids Pipelines) are noted.

Unless otherwise indicated, we express monetary amounts in Canadian dollars, and units of measure are metric.

How did we determine what to report?

In this report, we focus on the sustainability topics that matter most to our stakeholders, our employees and our business. They are the topics that could substantively influence stakeholders’ assessments and decisions regarding Enbridge.

To determine these topics, in previous years, we conducted materiality assessments based on the GRI’s G4 guidelines. In 2016, we validated these topics based on what we know to be important to us and on what we heard during our ongoing engagement with stakeholder and Indigenous groups. We categorized these topics into two groups:

• Priority areas, which are topics that are of high importance to Enbridge and our stakeholders; and
• Areas that enable continuous improvement, which enable us to continually improve our priority areas, and that, therefore require our ongoing focus.

Following our combination with Spectra Energy in 2017, we re-evaluated our priority areas and areas that enable continuous improvement. We determined that, despite the increased size, diversity and geographic scope of our company, they are still accurate and should continue to be the subject of our strategic focus.

Our priority areas are:

• Safety and environmental protection, including:
  • Health and Safety,
  • Maintaining the fitness of Enbridge’s systems and detecting leaks, and
  • Emergency preparedness and response;
• Stakeholder and Indigenous inclusion, including:
  • Stakeholder engagement, and
  • Indigenous engagement;
• Climate and energy solutions, including:
  • Climate change, emissions reduction and energy efficiency, and
  • Renewable and low carbon energy.

Our areas that enable continuous improvement are:

• employee relations;
• environmental management systems;
• supply chain management systems;
• customer relations;
• research, development and innovation;
• community investments; and
• economic performance and benefits.

Each of the above priority areas and key sustainability issues are discussed in detail in this Sustainability Report.

What reporting standard have we used?

We prepared our 2017 Sustainability Report using the Global Reporting Initiative (GRI) sustainability reporting guidelines, which are intended to serve as a generally-accepted framework for reporting on an organization’s sustainability performance. The GRI Standards were designed for use by organizations of any size, sector or location, and take into account the practical considerations faced by organizations ranging from small companies to those with extensive and geographically dispersed operations. The guidelines contain general and sector-specific content that has been agreed on by a wide range of stakeholders around the world to be generally applicable for reporting an organization’s sustainability performance. Under the GRI Standards, our 2017 Sustainability Report is classified as “Core”.

Assurance of our report

We have not obtained third-party assurance of the data in our 2017 Sustainability Report. Although we understand the value of externally assuring our data, we have elected to complete our integration activities to ensure that we have consistent methodologies for data compilation and a sound basis for presenting integrated data. With this in mind, we have set a corporate goal of obtaining third-party assurance on data associated with the following key performance indicators (KPIs) in the near future:

• greenhouse gas (GHG) emissions;
• energy consumption;
• health and safety performance;
• water usage;
• waste disposal;
• land and species data; and
• spills and releases.

We anticipate that meeting this goal will take between two to four years. In 2018, we plan to continue working toward achieving third-party assurance of our GHG and energy consumption data, and in early 2018 we engaged an external service provider to assist us with data compilation, integration and pre-assurance.