# Rekor Documentation ## Introduction - [Welcome](https://docs.rekor.ai/introduction/welcome.md) - [Additional Information](https://docs.rekor.ai/introduction/welcome/additional-information.md) ## Rekor PDF Library - [Rekor PDF Library](https://docs.rekor.ai/rekor-pdf-library/rekor-pdf-library.md) ## Rekor Scout® - [Rekor Scout Overview](https://docs.rekor.ai/scout/getting-started/rekor-scout-overview.md) - [Additional ALPR and Vehicle Recognition Products](https://docs.rekor.ai/scout/getting-started/additional-alpr-and-vehicle-recognition-products.md) - [Countries and Regions Supported](https://docs.rekor.ai/scout/getting-started/countries-and-regions-supported.md) - [Vehicle Characteristics Supported](https://docs.rekor.ai/scout/getting-started/vehicle-characteristics-supported.md) - [Create an Account](https://docs.rekor.ai/scout/getting-started/create-an-account.md) - [Subscriptions and Licensing](https://docs.rekor.ai/scout/getting-started/subscriptions-and-licensing.md) - [System Requirements](https://docs.rekor.ai/scout/agent/system-requirements.md) - [Benchmarking](https://docs.rekor.ai/scout/agent/benchmarking.md) - [Installation](https://docs.rekor.ai/scout/agent/installation.md) - [License Registration](https://docs.rekor.ai/scout/agent/license-registration.md) - [Set Data Destination](https://docs.rekor.ai/scout/agent/set-data-destination.md) - [Connect to Cameras](https://docs.rekor.ai/scout/agent/connect-to-cameras.md) - [Configuration](https://docs.rekor.ai/scout/agent/configuration.md) - [Agent Properties](https://docs.rekor.ai/scout/agent/configuration/agent-properties.md) - [Camera Streams](https://docs.rekor.ai/scout/agent/configuration/camera-streams.md) - [NVIDIA GPU Acceleration](https://docs.rekor.ai/scout/agent/configuration/nvidia-gpu-acceleration.md) - [Restarting the Agent](https://docs.rekor.ai/scout/agent/configuration/restarting-the-agent.md) - [Agent Release Notes](https://docs.rekor.ai/scout/agent/agent-release-notes.md): This page provides all recent software release notes for Scout Agent as well as links to downloads for both Windows and Linux. - [Camera Placement Guide](https://docs.rekor.ai/scout/camera-configuration/camera-placement-guide.md) - [Lighting](https://docs.rekor.ai/scout/camera-configuration/lighting.md) - [Camera Positioning](https://docs.rekor.ai/scout/camera-configuration/camera-positioning.md) - [Pixels on Target](https://docs.rekor.ai/scout/camera-configuration/pixels-on-target.md) - [Camera Image Settings](https://docs.rekor.ai/scout/camera-configuration/camera-image-settings.md) - [Overview](https://docs.rekor.ai/scout/web-server/overview.md) - [Cloud](https://docs.rekor.ai/scout/web-server/cloud.md) - [Self-Hosted](https://docs.rekor.ai/scout/web-server/self-hosted.md) - [Configuring Agents](https://docs.rekor.ai/scout/web-server/configuring-agents.md) - [REST API](https://docs.rekor.ai/scout/web-server/rest-api.md) - [Overview](https://docs.rekor.ai/scout/scout-dashboard/overview.md) - [Registration](https://docs.rekor.ai/scout/scout-dashboard/registration.md) - [Login](https://docs.rekor.ai/scout/scout-dashboard/login.md) - [Dashboard](https://docs.rekor.ai/scout/scout-dashboard/dashboard.md) - [Quick View Panels](https://docs.rekor.ai/scout/scout-dashboard/dashboard/quick-view-panels.md) - [Most Recent Plate Reads](https://docs.rekor.ai/scout/scout-dashboard/dashboard/most-recent-plate-reads.md) - [Recent Alerts](https://docs.rekor.ai/scout/scout-dashboard/dashboard/recent-alerts.md) - [Top Cameras/Alerts of the Week](https://docs.rekor.ai/scout/scout-dashboard/dashboard/top-cameras-alerts-of-the-week.md) - [Quick Search](https://docs.rekor.ai/scout/scout-dashboard/dashboard/quick-search.md) - [Agents & Camera Configuration](https://docs.rekor.ai/scout/scout-dashboard/agents-and-camera-configuration.md) - [Advanced Search](https://docs.rekor.ai/scout/scout-dashboard/advanced-search.md) - [Dispatch Map](https://docs.rekor.ai/scout/scout-dashboard/dispatch-map.md) - [Video Review](https://docs.rekor.ai/scout/scout-dashboard/video-review.md) - [Statistics](https://docs.rekor.ai/scout/scout-dashboard/statistics.md) - [Analytics & Reports](https://docs.rekor.ai/scout/scout-dashboard/analytics-and-reports.md) - [Search Audit](https://docs.rekor.ai/scout/scout-dashboard/search-audit.md) - [Account Settings](https://docs.rekor.ai/scout/scout-dashboard/account-settings.md) - [Guides and Support](https://docs.rekor.ai/scout/scout-dashboard/guides-and-support.md) - [Configuration](https://docs.rekor.ai/scout/scout-dashboard/configuration.md) - [Alerts](https://docs.rekor.ai/scout/scout-dashboard/configuration/alerts.md) - [Agents](https://docs.rekor.ai/scout/scout-dashboard/configuration/agents.md) - [Licensed Agents](https://docs.rekor.ai/scout/scout-dashboard/configuration/licensed-agents.md) - [WebHooks](https://docs.rekor.ai/scout/scout-dashboard/configuration/webhooks.md) - [User Management](https://docs.rekor.ai/scout/scout-dashboard/configuration/user-management.md) - [Data Sharing](https://docs.rekor.ai/scout/scout-dashboard/configuration/data-sharing.md) - [Permissions Groups](https://docs.rekor.ai/scout/scout-dashboard/configuration/permissions-groups.md) - [Integrations](https://docs.rekor.ai/scout/scout-dashboard/configuration/integrations.md) - [Billing and Subscriptions](https://docs.rekor.ai/scout/scout-dashboard/billing-and-subscriptions.md) - [Change Your Plan](https://docs.rekor.ai/scout/scout-dashboard/billing-and-subscriptions/change-your-plan.md) - [Update Billing Address](https://docs.rekor.ai/scout/scout-dashboard/billing-and-subscriptions/update-billing-address.md) - [Update Payment Method](https://docs.rekor.ai/scout/scout-dashboard/billing-and-subscriptions/update-payment-method.md) - [Review Billing History](https://docs.rekor.ai/scout/scout-dashboard/billing-and-subscriptions/review-billing-history.md) - [Cancel Your Subscription](https://docs.rekor.ai/scout/scout-dashboard/billing-and-subscriptions/cancel-your-subscription.md) - [Rekor CarCheck®](https://docs.rekor.ai/scout/scout-dashboard/rekor-carcheck-r.md) - [Scout® Web Release Notes](https://docs.rekor.ai/scout/scout-r-web-release-notes.md): Explore the complete details of each Rekor Scout® product update, including a comprehensive overview of new features, enhancements, and bug fixes, all organized by version and release date. - [Overview](https://docs.rekor.ai/scout/application-integration/overview.md) - [Integrating with the Agent](https://docs.rekor.ai/scout/application-integration/integrating-with-the-agent.md) - [Receiving HTTP POSTs](https://docs.rekor.ai/scout/application-integration/receiving-http-posts.md) - [Pulling from the Queue](https://docs.rekor.ai/scout/application-integration/pulling-from-the-queue.md) - [JSON Plate Results](https://docs.rekor.ai/scout/application-integration/json-plate-results.md) - [JSON Group Results](https://docs.rekor.ai/scout/application-integration/json-group-results.md) - [JSON Heartbeat](https://docs.rekor.ai/scout/application-integration/json-heartbeat.md) - [Local Image Retrieval](https://docs.rekor.ai/scout/application-integration/local-image-retrieval.md) ## Rekor Discover® - [Rekor Discover Overview](https://docs.rekor.ai/rekor-discover-r/readme.md) - [Discover® Release Notes](https://docs.rekor.ai/rekor-discover-r/readme/discover-r-release-notes.md): Explore the complete details of the recent Rekor Discover® product updates, including a comprehensive overview of new features, enhancements, and bug fixes, all organized by version and release date. - [Login](https://docs.rekor.ai/rekor-discover-r/getting-started/quickstart.md) - [CCS Overview](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/editor.md) - [Initial Setup](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/markdown.md) - [Stations](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/markdown/stations.md) - [Devices](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/markdown/devices.md) - [Studies](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/markdown/studies.md) - [Emergency Preparedness](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/emergency-preparedness.md) - [Pre-evacuation Monitoring](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/emergency-preparedness/pre-evacuation-monitoring.md) - [Scheduled Evacuations](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/emergency-preparedness/scheduled-evacuations.md) - [Reports](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/images-and-media.md) - [Greenhouse Gas](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/images-and-media/greenhouse-gas.md) - [Speed and Classification](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/images-and-media/speed-and-classification.md) - [Tonnage](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/images-and-media/tonnage.md) - [Video](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/video.md) - [Settings](https://docs.rekor.ai/rekor-discover-r/class-count-and-speed/settings.md) - [Vehicle Insite Overview](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/vehicle-insite-overview.md) - [Reports](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/reports.md) - [Average Daily Traffic](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/reports/average-daily-traffic.md) - [Cars vs Trucks](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/reports/cars-vs-trucks.md) - [Electric Charging](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/reports/electric-charging.md) - [Greenhouse Gas](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/reports/greenhouse-gas.md) - [Overspeed](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/reports/overspeed.md) - [Tonnage](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/reports/tonnage.md) - [Vehicle Flow & Duration of Stay](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/reports/vehicle-flow-and-duration-of-stay.md) - [Volume](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/reports/volume.md) - [Locations](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/locations.md) - [Groups](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/groups.md) - [Video](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/video.md) - [Speed](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/speed.md) - [Settings](https://docs.rekor.ai/rekor-discover-r/vehicle-insite/settings.md) ## Rekor Command® - [Rekor Command Overview](https://docs.rekor.ai/rekor-command-r/readme.md) - [Login](https://docs.rekor.ai/rekor-command-r/getting-started/quickstart.md) - [Incident Management](https://docs.rekor.ai/rekor-command-r/live-map/editor.md) - [Incident List](https://docs.rekor.ai/rekor-command-r/live-map/editor/incident-list.md) - [Incident Card](https://docs.rekor.ai/rekor-command-r/live-map/editor/incident-card.md) - [Map Functions](https://docs.rekor.ai/rekor-command-r/live-map/map-functions.md) - [Layers](https://docs.rekor.ai/rekor-command-r/live-map/map-functions/layers.md): The Layers function allows you to enable or disable the corresponding icons on the map. There are two sets of layers: events and assets. - [Transit](https://docs.rekor.ai/rekor-command-r/live-map/map-functions/transit.md) - [Weather](https://docs.rekor.ai/rekor-command-r/live-map/map-functions/weather.md) - [Crash Risk](https://docs.rekor.ai/rekor-command-r/live-map/map-functions/crash-risk.md) - [Map Views](https://docs.rekor.ai/rekor-command-r/live-map/map-functions/map-views.md) - [Analytics](https://docs.rekor.ai/rekor-command-r/datahub/analytics.md) - [History](https://docs.rekor.ai/rekor-command-r/datahub/history.md) - [Incidents](https://docs.rekor.ai/rekor-command-r/datahub/history/incidents.md) - [Traffic Disruptions](https://docs.rekor.ai/rekor-command-r/datahub/history/traffic-disruptions.md) ## Command Intelligence Services - [Overview](https://docs.rekor.ai/command-intelligence-services/getting-started/overview.md) - [Technical Support](https://docs.rekor.ai/command-intelligence-services/getting-started/technical-support.md) - [Incident Detection API Overview](https://docs.rekor.ai/command-intelligence-services/incident-detection-api/overview.md) - [Integration Methods](https://docs.rekor.ai/command-intelligence-services/incident-detection-api/integration-methods.md) - [REST API (Pull)](https://docs.rekor.ai/command-intelligence-services/incident-detection-api/integration-methods/rest-api-pull.md) - [Callback Service (Push)](https://docs.rekor.ai/command-intelligence-services/incident-detection-api/integration-methods/callback-service-push.md) - [Schema Structure](https://docs.rekor.ai/command-intelligence-services/incident-detection-api/schema-structure.md) - [Traffic Impact](https://docs.rekor.ai/command-intelligence-services/incident-detection-api/schema-structure/traffic-impact.md) - [Data Samples](https://docs.rekor.ai/command-intelligence-services/incident-detection-api/data-samples.md): This page provides samples of Incident data in JSON format, accessible through an API. These samples offer structured representations of various incidents. - [Work Zone Activity API Overview](https://docs.rekor.ai/command-intelligence-services/work-zone-activity-api/work-zone-activity-api-overview.md) - [Integration](https://docs.rekor.ai/command-intelligence-services/work-zone-activity-api/integration.md) - [Schema Structure](https://docs.rekor.ai/command-intelligence-services/work-zone-activity-api/schema-structure.md) - [Data Samples](https://docs.rekor.ai/command-intelligence-services/work-zone-activity-api/data-samples.md) ## Developer Ecosystem - [Rekor CarCheck® Overview](https://docs.rekor.ai/developers/carcheck/rekor-carcheck-r-overview.md) - [Countries and Regions Supported](https://docs.rekor.ai/developers/carcheck/countries-and-regions-supported.md) - [Vehicle Characteristics Supported](https://docs.rekor.ai/developers/carcheck/vehicle-characteristics-supported.md) - [Create an Account](https://docs.rekor.ai/developers/carcheck/create-an-account.md) - [Integration](https://docs.rekor.ai/developers/carcheck/integration.md) - [Code Samples](https://docs.rekor.ai/developers/carcheck/code-samples.md) - [Web Dashboard](https://docs.rekor.ai/developers/carcheck/web-dashboard.md) - [Vehicle Recognition SDK Overview](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-recognition-sdk-overview.md) - [Countries and Regions Supported](https://docs.rekor.ai/developers/vehicle-recognition-sdk/countries-and-regions-supported.md) - [Vehicle Characteristics Supported](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-characteristics-supported.md) - [Request a License](https://docs.rekor.ai/developers/vehicle-recognition-sdk/request-a-license.md) - [Installation](https://docs.rekor.ai/developers/vehicle-recognition-sdk/installation.md) - [Windows](https://docs.rekor.ai/developers/vehicle-recognition-sdk/installation/windows.md) - [Ubuntu Linux](https://docs.rekor.ai/developers/vehicle-recognition-sdk/installation/ubuntu-linux.md) - [Vehicle Recognition Image API](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-recognition-image-api.md) - [C++](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-recognition-image-api/c++.md) - [C](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-recognition-image-api/c.md) - [Samples](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-recognition-image-api/samples.md) - [Vehicle Recognition Stream API](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-recognition-stream-api.md) - [C++](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-recognition-stream-api/c++.md) - [C](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-recognition-stream-api/c.md) - [Samples](https://docs.rekor.ai/developers/vehicle-recognition-sdk/vehicle-recognition-stream-api/samples.md) ## Rekor One® - [Rekor One®](https://docs.rekor.ai/rekor-one-r/readme.md) - [Advanced Data Aggregation](https://docs.rekor.ai/rekor-one-r/readme/advanced-data-aggregation.md) - [AI-Powered Data Transformation](https://docs.rekor.ai/rekor-one-r/readme/ai-powered-data-transformation.md) - [Actionable Intelligence Delivery](https://docs.rekor.ai/rekor-one-r/readme/actionable-intelligence-delivery.md) - [Continuous improvement](https://docs.rekor.ai/rekor-one-r/readme/continuous-improvement.md) ## Rekor Edge Pro - [Introduction](https://docs.rekor.ai/edge-pro/introduction.md) - [Register Your Product](https://docs.rekor.ai/edge-pro/register-your-product.md) - [Overview](https://docs.rekor.ai/edge-pro/connecting/overview.md) - [Powering](https://docs.rekor.ai/edge-pro/connecting/powering.md) - [Configuration Dashboard](https://docs.rekor.ai/edge-pro/connecting/configuration-dashboard.md) - [Access](https://docs.rekor.ai/edge-pro/connecting/configuration-dashboard/access.md) - [First Time Login](https://docs.rekor.ai/edge-pro/connecting/configuration-dashboard/first-time-login.md) - [Device Settings](https://docs.rekor.ai/edge-pro/connecting/configuration-dashboard/device-settings.md) - [Mobile Network Settings](https://docs.rekor.ai/edge-pro/connecting/configuration-dashboard/mobile-network-settings.md) - [Licensing](https://docs.rekor.ai/edge-pro/connecting/configuration-dashboard/licensing.md) - [Data Destination](https://docs.rekor.ai/edge-pro/connecting/configuration-dashboard/data-destination.md) - [Overview](https://docs.rekor.ai/edge-pro/installing/overview.md) - [Packing List](https://docs.rekor.ai/edge-pro/installing/packing-list.md) - [Cable Interface](https://docs.rekor.ai/edge-pro/installing/cable-interface.md) - [Assembly](https://docs.rekor.ai/edge-pro/installing/assembly.md) - [SIM Card Installation](https://docs.rekor.ai/edge-pro/installing/assembly/sim-card-installation.md) - [Sun Shield Cover](https://docs.rekor.ai/edge-pro/installing/assembly/sun-shield-cover.md) - [Mounting Bracket](https://docs.rekor.ai/edge-pro/installing/assembly/mounting-bracket.md) - [Mounting](https://docs.rekor.ai/edge-pro/installing/mounting.md) - [Cable Connection](https://docs.rekor.ai/edge-pro/installing/cable-connection.md) - [Waterproofing and Insulation](https://docs.rekor.ai/edge-pro/installing/waterproofing-and-insulation.md) - [Installation Checklist](https://docs.rekor.ai/edge-pro/installing/installation-checklist.md) - [Overview](https://docs.rekor.ai/edge-pro/configuring/overview.md) - [Location](https://docs.rekor.ai/edge-pro/configuring/location.md) - [Camera Configuration](https://docs.rekor.ai/edge-pro/configuring/camera-configuration.md) - [LPR Configuration](https://docs.rekor.ai/edge-pro/configuring/lpr-configuration.md) - [Overview](https://docs.rekor.ai/edge-pro/calibration-tips/overview.md): With a built-in CPU, Rekor Edge Pro can process all license plate and vehicle reads at the edge. This means that you get actionable knowledge and alerts in real time. - [Quick Reference Guide](https://docs.rekor.ai/edge-pro/calibration-tips/quick-reference-guide.md): A quick reference guide to help you understand the specifications and best practices for operating the Rekor Edge Pro. - [Specifications, Requirements, and Capabilities](https://docs.rekor.ai/edge-pro/calibration-tips/specifications-requirements-and-capabilities.md): This guide is intended for technical users who are responsible for installation and configuration of IP camera, security, and LPR systems within your network environment. - [Calibration](https://docs.rekor.ai/edge-pro/calibration-tips/calibration.md): As with any LPR sensor, proper post-installation camera calibration is essential to ensure optimum recognition rates, accuracy, and system performance. - [Getting Help](https://docs.rekor.ai/edge-pro/calibration-tips/getting-help.md): As with any LPR sensor, proper post-installation camera calibration is essential to ensure optimum recognition rates, accuracy, and system performance. If you need assistance, Rekor can help. ## Rekor Edge Max™ - [Overview](https://docs.rekor.ai/rekor-edge-max-tm/rekor-edge-max-tm-for-alpr/overview.md) - [ALPR Camera Placement](https://docs.rekor.ai/rekor-edge-max-tm/rekor-edge-max-tm-for-alpr/alpr-camera-placement.md) - [Camera Positioning](https://docs.rekor.ai/rekor-edge-max-tm/rekor-edge-max-tm-for-alpr/alpr-camera-placement/camera-positioning.md) - [Lighting](https://docs.rekor.ai/rekor-edge-max-tm/rekor-edge-max-tm-for-alpr/alpr-camera-placement/lighting.md) - [Pixels on Target](https://docs.rekor.ai/rekor-edge-max-tm/rekor-edge-max-tm-for-alpr/alpr-camera-placement/pixels-on-target.md) - [Camera Image Settings](https://docs.rekor.ai/rekor-edge-max-tm/rekor-edge-max-tm-for-alpr/alpr-camera-placement/camera-image-settings.md) - [Overview](https://docs.rekor.ai/rekor-edge-max-tm/rekor-edge-max-tm-for-ccs/overview.md) - [Overview](https://docs.rekor.ai/rekor-edge-max-tm/connecting/overview.md) - [Powering](https://docs.rekor.ai/rekor-edge-max-tm/connecting/powering.md) - [Camera Software Settings](https://docs.rekor.ai/rekor-edge-max-tm/connecting/camera-software-settings.md) - [System Settings](https://docs.rekor.ai/rekor-edge-max-tm/connecting/camera-software-settings/system-settings.md) - [Video Configuration](https://docs.rekor.ai/rekor-edge-max-tm/connecting/camera-software-settings/video-configuration.md) - [Stream Configuration](https://docs.rekor.ai/rekor-edge-max-tm/connecting/camera-software-settings/stream-configuration.md) - [Overlay Configuration](https://docs.rekor.ai/rekor-edge-max-tm/connecting/camera-software-settings/overlay-configuration.md) - [Camera Settings Chart](https://docs.rekor.ai/rekor-edge-max-tm/connecting/camera-software-settings/camera-settings-chart.md) - [Edge Processing Unit Installation](https://docs.rekor.ai/rekor-edge-max-tm/installing/edge-processing-unit-installation.md) - [Edge Max Camera Installation](https://docs.rekor.ai/rekor-edge-max-tm/installing/edge-max-camera-installation.md) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on a page URL with the `ask` query parameter: ``` GET https://docs.rekor.ai/introduction/welcome.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.