Introduction 

The SMMS builds on the Environmental Monitoring and Measurement System (EMMS) which has tracked and driven progress in the postal sector’s carbon management since 2008. Our participants have shown tremendous progress in that time. The original EMMS targets were set in 2009 following a pilot in 2008, with 20 participants collectively setting ambitious targets to be achieved by 2020, compared to the 2008 baseline:

• To reduce combined carbon emissions from own operations by 20% – achieved in 2014
• To achieve a score of at least 90% in carbon management proficiency – achieved in 2018

Following the early achievement of the first target, a new target was introduced in 2014:

• To achieve a 20% reduction in Scope 1, 2 and 3 (from own operations and outsourced transport) carbon emissions per letter mail and per parcel by 2025, from a 2013 baseline year. 

This target was approved by the Science Based Target Initiative (SBTI) in 2016 (one of the first 12 globally) indicating that the level of decarbonisation required to achieve it is in line with the goals of the Paris Agreement. As of 2024, 18 posts now have individually committed to a Science Based Target. 

IPC is proud to report that the SMMS group has achieved the parcel delivery efficiency target in SMMS 2025. This is especially impressive given the rapidly growing quantity of e-commerce globally and an increasing expectation from consumers of one- or two-day delivery. This demonstrates the strong leadership and commitment of posts to improve their carbon management in order to reduce the sector’s contribution to global emissions. The group-level delivery efficiency figures exclude Japan Post and Thailand Post, which both joined the SMMS programme in 2024 and are still developing an emissions allocation process.

Reflecting the importance of this issue to our sector, climate change continues to be a key focus of the SMMS programme as we look towards our 2030 goals. 

Emerging trends

Given the size of the participant’s collective fleets, reducing the environmental impact of the group’s vehicles will be a continued focus going forward. It is estimated that the global electric vehicle market will grow 25-30% by the end of the decade, and as discussed in the Resource Efficiency section, our participants continue to be innovative in this area. 

As the impacts of Climate Change such as the natural disasters experienced in 2024 - 2025 continue to increase and impact businesses our engagement with suppliers on ways to reduce carbon emissions will continue to be critical in order to decrease Scope 3 emissions, which contribute the majority of the group’s total carbon emissions (66% of Scope 1, 2 and 3). Posts have shown a commitment to mitigating the impact of the value chain through a variety of initiatives, with examples found in our case study library. 

SMMS participants

Results for CC in 2024 are calculated using SMP results from all 27 SMMS participants. Australian Postal Corporation is also not included in the 2024 results.

Results

• Climate Change was the second highest scoring Focus Area out of the seven in the Sustainability Management Proficiency (SMP) questionnaire, reflecting the group’s continued dedication to this issue.
• Posts scored 78.3% collectively for Climate Change, nearly six percentage points ahead of the group’s Overall SMP Score of 72.6%.
• The group scored highest in questions related to Measurement and Evaluation just as in 2023, reflecting the group’s focus on rigorous data collection. The group also scored well in the Strategy and Policy pillar, a crucial element of effective climate change risk management. 
• The Embedding pillar score continued to increase in 2024, scoring 0.7 percentage points higher than 2023. However, the group still needs to continue improving governance, management systems and delivery processes related to climate change.
  
   

Highlights of the group’s performance in 2023 include:

• All 27 posts have a strategic focus on greenhouse gas emissions
• 21 posts have a dedicated policy in place that includes a commitment to performance improvement and a framework for achieving objectives
• 22 posts have a mid-term or long-term target related to climate change, and 19 posts have an annual target
• 26 participants define responsibility for climate change at the board or executive level of their organisation
• 26 posts have discussed current and/or future climate change strategies with their supplier groups.

We encourage posts to continue developing their approaches to Climate Change management, including participating in initiatives to build resilience to climate change within their own organisations and in the wider community, through employee education and outreach programmes.

Scope 1 and 2 emissions

In 2020, we set a new 2030 target for absolute carbon emissions – to reduce collective scope 1 and 2 emissions by 50% compared to a 2019 baseline. In 2024, posts reported a 17.3% decrease in emissions compared to 2019. This was great progress for the group as they recorded a 11.9% decrease at the end of 2023. This equates to a reduction of more than 1.1 million tonnes of CO₂ in 2024 compared to 2019.  

NB: All emission figures are rounded to the nearest thousand
All results include Canada Post, Japan Post and Thailand Post who joined the SMMS programme in 2024.  The earliest emission data has been back casted to 2019 to ensure consistent reporting. As well as omitting Australian Postal Corporation from all results shown

NB: All emission figures are rounded to the nearest thousand 
All results include Canada Post, Japan Post and Thailand Post who joined the SMMS programme in 2024.  The earliest emission data has been back casted to 2019 to ensure consistent reporting. As well as omitting Australian Postal Corporation from all results shown

NB: All delivery efficiency figures are rounded to one decimal place 
All figures have been restated to include Canada Post, which joined the SMMS programme in 2024, and to omit Australian Postal Corporation, which has left the programme. Japan Post and Thailand Post are not included in the results as they are still working on developing an emissions allocation process between letter mail and parcel. This impacts comparability with previous reports.

The SMMS group has therefore achieved the 2025 parcel delivery efficiency target. IPC is proud to see the progress participants have made in this area, against a backdrop of an ever-growing quantity of e-commerce globally. The group has achieved this through significant energy efficiency improvements in its buildings, rapid adoption of Alternate Fuels Vehicles, as well as delivery route optimisation.

Posts face a significant challenge in reducing the carbon intensity of letter mail deliveries in an environment of falling letter mail demand. With the growth in parcel demand showing no signs of abating, we expect to see the inverse trend for parcel delivery efficiency. 

Advancements in reducing emissions from outsourced road and air transport will need to match and indeed exceed the progress made in reducing Scope 1 and 2 emissions in order to lessen the carbon intensity of deliveries. IPC’s commitment can be shown in our Case Studies, which cover a multitude of initiatives and ambitious goal setting. 

Building on this success, a significant focus of the programme is to support the sector’s efforts at decarbonising the transport. IPC recognises that there is no silver bullet. In the short term, the industry will continue to draw on a host of different alternative fuel vehicle (AFV) solutions - of the total SMMS fleet, the proportion of AFVs increased from 12.4% in 2012 to 31.8% in 2024. Innovative programmes and battery developments have put electric vehicles firmly in the driving seat in the near term, with EVs representing 26% of the SMMS fleet in 2024 (187,000 EVs in a fleet of 720,000 vehicles). Therefore, as we see the increasing penetration of low carbon transport in the sector, we expect the climate impact of these deliveries to continue to decline in the future.