Australia is facing a critical phase in its journey towards decarbonizing the heavy-duty transport sector, with a focus on road freight emissions. Transportation contributes significantly to global CO2 emissions, with road transport accounting for 24% in 2022, of which 35% are attributed to trucks and buses. To achieve net zero by 2050, a 15% reduction in road freight emissions from 2022 to 2030 is necessary. Despite the push for greener alternatives, diesel trucks continue to dominate the market, hindering decarbonization efforts. Hydrogen and electric trucks offer promise for sustainability but require major infrastructure upgrades. While hydrogen provides a rapid refueling solution suitable for long-haul routes, challenges such as storage space and high costs hinder its widespread adoption. Electric trucks, on the other hand, are gaining traction due to their cost-effectiveness and clean nature, supported by ambitious policies like the EU's CO2 standards and US regulations. The lag in infrastructural development poses a challenge to the growth of sustainable trucking options. The high costs associated with charging infrastructure for electric trucks and hydrogen fueling stations necessitate significant investments. However, advancements in technology and harmonized standards are expected to drive down costs over time. Companies like NewVolt Infrastructure Pty Ltd. in Australia are working on developing a national network of shared charging infrastructure for electric trucking. Renewable diesel emerges as an interim solution, offering immediate emissions reduction benefits while electric and hydrogen infrastructure matures. With the right investments and collaborative efforts among industry leaders, energy providers, and the government, Australia has the potential to become a renewable diesel powerhouse and lead the green trucking revolution.