FY21 ESG Disclosures July 2022 Unaudited 13 [f] Emissions associated with purchased goods and services are estimated using annual spend combined with emissions factors from the CEDA6 database, which provides industry average emissions factors for economic product and service categories. As of the date of this document’s publication, third party validation of these estimates is in process. [g] Estimates for upstream fuel and energy-related activities were completed using U.K. Department of Environment, Food & Rural Affairs (DEFRA) guidance and emission factors. As of the date of this document’s publication, third party validation of these estimates is in process. [h] Based on 65% ownership in PA Consulting acquired on March 3, 2021. Data represents 65% of the PA Consulting emissions reported in 2021, not including its purchased goods and services that are undergoing review. The COVID-19 pandemic greatly impacted our FY20 and FY21 business travel and employee commuting emissions. Business travel is our largest source of carbon emissions, and as expected, we saw a 75% reduction in our scope 3 business travel emissions from FY19 to FY21, mainly due to COVID-19 restrictions on both domestic and international travel. Our goal moving forward is to prevent a rebound of these emissions back to pre-COVID levels. As we move to a new post-COVID norm we are committed to manage business travel and employee commuting emissions in accordance with our science-based target reduction of 50% from 2019 levels by 2030. Efforts to reduce our business travel carbon emissions were previously underway prior to the COVID-19 pandemic. For example, we created an employee dashboard so our people can view their travel carbon footprint and be empowered individually to help us meet our global emissions reduction goals by reducing their own travel and using less carbon-intensive meeting methods. Business Units are accountable for tracking, monitoring and reporting business travel in alignment with this new reporting tool. As announced on December 13, 2021, effective January 1, 2022, we established an internal carbon price of $50 per ton for all non-billable business travel to influence sustainable decision-making around travel reduction and further help reduce our carbon footprint. The carbon cost calculated for every non-billable business trip will be added to the overall cost of travel and charged to the applicable business unit. Proceeds will be used to fund carbon reduction and removal initiatives. Employee commuting estimates are based on Jacobs’ Human Resources data, including employee numbers, worker location, worker type and worker status. Commuting estimates account for duration and frequency of employees working from home due to COVID-19 based on generalized office count information. Employee commuting numbers include all company acquisitions to the end of the fiscal year. Estimates account for employee commuting mode (for example, passenger car, truck or bus) and round-trip travel distances. Both are estimated using average data sources, as recommended by the GHG Protocol Technical Guidance for Calculating scope 3 Emissions, since no employee commuting surveys with this type of data were performed by us during FY19, FY20 or FY21. Employee commuting estimates are then multiplied by the appropriate emission factors to obtain total employee commuting emissions. Emission factors come from the U.S. EPA Center for Corporate Climate Leadership GHG Emission Factors Hub (April 2021) for U.S. data, the U.K. Government GHG Conversion Factors for Company Reporting (July 2020) for U.K. data, and the WRI GHG Emission Factors Compilation (March 2017) for all other countries’ data. We saw a 73% reduction in our scope 3 emissions for employee commuting from FY19 to FY21, mainly due to COVID-19 restrictions on our employees for commuting to our offices, requiring most of our employees to work from home. We are currently collecting survey data from our employees to account for actual commuting patterns and encourage continued reductions post-COVID. We anticipate our science-based targets for business travel and employee commuting will be met through the following:  Increased use of video conferencing for internal and external business meetings  Online versus in-person trainings  Virtual professional and industry association conferences  Reduced transportation vehicle emissions  Alternative, cleaner transportation methods