Cities, States and Regions questionnaire changes map

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This article is for disclosing cities, states and regions and details the changes to the CDP Cities and States and Regions questionnaires between the 2025 and 2026 disclosure cycles.

Overview
Breakdown of question changes

Overview

The 2026 Cities, States and Regions questionnaires changes map outlines the key developments to the questionnaires and includes the following information:

The 2026 question number.
Which questionnaire? 2026 question numbers are the same across the Cities and States and Regions questionnaires, but not all questions and columns are shown in each. This details which questionnaire the question is shown in.
The associated 2025 question number.
Change: The level of change the question has undergone. These changes are defined as follows:
- No change: No change has been made to a past question. This does not include question numbers.
- No change to question, additional guidance: No change has been made to a past question, but existing guidance has been expanded beyond minor edits, or new guidance has been added e.g. resources in an Additional Information section.
- Minor change: Small changes have been made to a past question e.g. some new drop-downs, or a change to the question text. Where the guidance has also changed, this is indicated.
- Modified question: Substantive changes have been made to a past question e.g. a significant edit to drop-down options or columns. It can be assumed that modified questions will also have additional/modified guidance.
- Revised question dependency: No changes made except to question-to-question dependencies, altering what questions/columns will drive this question to appear.
- Summary of changes: Where relevant an overview of the key changes is provided.

Note: If you submitted a response to the 2025 questionnaires, your answers will be pre-filled into your 2026 questionnaire where possible. Answers will not be pre-filled for questions where you did not previously submit a response, or for new columns. Attachments are not transferred from the previous cycle.

Important: We encourage you to review pre-filled responses carefully. It is your responsibility to ensure your answers are updated for the accuracy and completeness of your 2026 response.

Breakdown of question changes

Module 1. Introduction

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
1.1	Cities, States and Regions	1.1	No change
1.2	Cities, States and Regions	1.2	Modified	Land use datapoints shifted to question 1.3.
1.3	Cities, States and Regions	N/A	New question	New question to streamline reporting of land use.
1.4	States and Regions	N/A	New question	New question with datapoints shifted from Forests module to streamline reporting.

Module 2. Governance

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
2.1	Cities, States and Regions	1.3	Modified	New dropdown column, “Indicate the aspects of your jurisdiction’s governance into which climate-related issues are mainstreamed.”
2.2	Cities, States and Regions	1.4	Modified	Updated dropdown options in column, “How does your jurisdiction ensure the equitable distribution of the opportunities/benefits of climate-related actions?”
2.3	Cities, States and Regions	1.5	Modified	New dropdown column, “Has this partnership/engagement been formalized?”
2.4	Cities, States and Regions	1.6	Modified	New dropdown options in column "Mechanism of cross-stakeholder collaboration" and "Entities collaborated with."
2.5	Cities, States and Regions	9.4	Modified	New columns, “Annual approved budget during reporting year (currency),” and “Amount of your budget that is aligned with your jurisdiction's climate action plans in reporting year (currency).”
2.6	Cities, States and Regions	N/A	New question	New question to streamline reporting of limiting factors.
2.7	Cities, States and Regions	N/A	New question	New question to improve progress tracking for disclosers and data users.

Module 3. Assessment - Climate Risk and Vulnerability

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
3.1	Cities, States and Regions	2.1	No change
3.1.1	Cities, States and Regions	2.1.1	Modified	Updated dropdown options in column, “Factors considered in assessment. 2025 1.3 column, “Describe the risks to your jurisdiction related to the transition to a low-carbon economy” shifted here.
3.2	Cities, States and Regions	2.2	Modified	Updated dropdown options in column, “Sectors, assets and services.” Introduced new columns on metrics and evidence used to measure changes and financial effects of the hazard.
3.3	Cities, States and Regions	2.3	No change

Module 4. Assessment - Emissions Inventory

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
4.1	Cities, States and Regions	3.1	No change
4.1.1	Cities, States and Regions	3.1.1	Minor	Streamlined options in columns "Latest year covered by main inventory" and "Overall level of data quality."
4.1.2	Cities, States and Regions	3.1.3	Modified	Streamlined reporting of community-wide emissions, allowing for reporting of emissions in the format of the CRF or GPC in one question to improve the reporting experience and data analysis.
4.1.3	Cities, States and Regions	3.1.4	Conditional logic only	This question is shown to disclosers reporting emissions in the format of the U.S. Communicty Protocol for Accounting and Reporting of Greenhouse Gas Emissions (ICLEI USA) or reporting emissions not disaggregated by scope.
4.2	Cities	3.2	No change
4.3	Cities	3.3	No change
4.3.1	Cities	3.3.1	No change
4.3.2	Cities	3.3.2	No change

Module 5. Assessment - Sectoral Data

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
5.1	Cities, States and Regions	4.1	Modified	Streamlined reporting in column "Latest year data applies to."
5.1.1	Cities	4.1.1	No change
5.1.2	Cities	4.1.2	No change
5.1.3	Cities, States and Regions	4.1.3	Modified	Updated table options in fixed column, “Energy Source.”
5.1.4	Cities	4.1.4	No change
5.2	Cities	4.2	Modified	Streamlined reporting in column "Latest year data applies to."
5.3	Cities	4.3	No change
5.4	Cities	4.4	No change
5.5	Cities, States and Regions	4.5	Modified	Streamlined reporting in columns "Latest year passenger mode share data applies to" and "Latest year freight mode share data applies to."
5.6	Cities	4.6	Modified	New columns "Public buses weighing less than 5 tonnes" and "Public buses weighing more than 5 tonnes." Streamlined reporting in column "Latest year data applies to."
5.7	Cities, States and Regions	4.7	Modified	Updated table options in fixed column, “Waste-related data area (unit)”.
5.8	Cities, States and Regions	4.8	Modified	Streamlined reporting in column "Time horizon over which impacts on health issue(s) are expected to occur." Updated dropdown options in column, "Identify which vulnerable populations are affected by the selected health issue(s)."
5.9	Cities	4.9	Minor	Streamlined reporting in column "Latest year data applies to."
5.10	Cities, States and Regions	4.1	Modified	Updated column header "Water consumption (liters/capita/day)" for clarity. Streamlined reporting in column "Latest year data applies to."
5.11	Cities, States and Regions	4.11	Minor	Streamlined reporting in column "Latest year data applies to."
5.12	Cities	4.13	Modified	New columns "Indicate the source location of your jurisdiction's water supply" and "Latest year data applies to."

Module 6. Targets - Adaptation Goals

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
6.1	Cities, States and Regions	5.1	No change
6.1.1	Cities, States and Regions	5.1.1	Modified	Introduced new column, “Provide evidence progress tracking is implemented for the metric/indicator used to track goal,” and “Goal status and progress made towards goal.”

Module 7. Targets - Mitigation

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
7.1	Cities, States and Regions	6.1	No change
7.1.1	Cities, States and Regions	5.1.1	Modified	Reduced reporting burden by shifting net zero related datapoints to 7.1.2.
7.1.2	Cities, States and Regions	6.1.2	Modified	Merged questions 2025 6.1.2 and 6.1.3 relating to residual emissions and emissions removals of net zero targets with conditional logic applied to reduce reporting burden. Aligned with Integrity Matters.

Module 8. Targets - Other Climate and Nature

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
8.1	Cities, States and Regions	7.1	Modified	New columns "Select a reference ID for the target" and "Please explain." Updated options in column, "Target status and progress made towards target."

Module 9. Planning

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
9.1	Cities, States and Regions	8.1	Minor	Updated question text.
9.1.1	Cities, States and Regions	8.1.1	Modified	Introduced new columns, “Primary framework used to develop plan,” and “Vulnerable population groups engaged.”
9.2	Cities, States and Regions	8.2	Modified	Updated dropdown options in column "Primary focus of plan, policy, and/or strategy."

Module 10. Actions

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
10.1	Cities, States and Regions	9.1/9.2	Modified	Merged 2025 questions (9.1 and 9.2) to streamline reporting and improve data quality
10.2	Cities, States and Regions	9.3	Modified	Introduced new columns on project development/project implementation timelines, “Identified finance source(s),” “Co-benefits realized,” “Project owner / Project sponsor,” and “Inclusion in climate-related action plan and/or jurisdiction development/master plan.”

Module 11. Forests

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
11.1	States and Regions	10.1	Modified	Introduced 4 new columns requesting information about forest maps, images or polygons.
11.1.1	States and Regions	10.1.1	Modified	Introduced new column, “Does your jurisdiction have data available to report on this type of forested land ownership category?”. Removed column, “Please explain”.
11.2	States and Regions	10.5	Modified	Updated question text.
11.2.1	States and Regions	10.5.1	Modified	Updated table options in fixed column, “Focus area”. Introduced new column, “Describe the targets or objectives of your natural forest or natural ecosystem or forest policy”.
11.3	States and Regions	10.4	Modified	Updated question text.
11.3.1	States and Regions	10.5.2	Modified	Updated table options in fixed column, “Challenges”.
11.4	States and Regions	10.6.1	Modified	Updated table options in fixed column, “Global initiative/convention”.
11.5	States and Regions	10.7	Modified	Shifted “No” options to new column, “Indicate why your jurisdiction is not implementing jurisdictional REDD+*”.
11.6	States and Regions	10.8	Modified	Updated question text. Updated dropdown options in column "Primary reason for no involvement."
11.6.1	States and Regions	10.8.1	Modified	Introduced new columns, “Include further information about the initiative” and “Nature targets/commitments related to the initiative.” Expanded dropdown list in column, “Types of partners engaged in the initiative design and implementation.”
11.7	States and Regions	10.9	Modified	Updated question text.
11.7.1	States and Regions	10.9.1	Modified	Updated question text.
11.8	States and Regions	10.1	Modified	Updated question text.
11.8.1	States and Regions	10.10.1	Modified	Updated table options in fixed column, “Risk assessment procedure.” Removed columns, “Drivers assessed” and “Frequency of assessment.”
11.9	States and Regions	10.11.1	Modified	Updated question text.
11.10	States and Regions	10.12.1	Modified	Introduced new column, “Please specify why no opportunities have been identified.”

Module 12. Further Information

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
12.1	Cities, States and Regions	11.1	No change
12.2	Cities, States and Regions	11.2	No change

Module 13. C40 Cities

2026 question number	Which questionniare?	2025 question number	Change	Summary of changes
13.1	C40 Cities only	4.12	No change
13.2	C40 Cities only	N/A	New question
13.3	C40 Cities only	N/A	New question
13.4	C40 Cities only	N/A	New question
13.5	C40 Cities only	N/A	New question
13.6	C40 Cities only	N/A	New question
13.7	C40 Cities only	N/A	New question
13.8	C40 Cities only	N/A	New question
13.9	C40 Cities only	N/A	New question
13.10	C40 Cities only	N/A	New question
13.11	C40 Cities only	N/A	New question
13.12	C40 Cities only	N/A	New question

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