This study compared the construction background and items, legal status, operating institutions, and utilization fields of carbon spatial maps in the U.S., U.K., and Japan, which have been used to map carbon neutrality status. Key findings suggest that advancing domestic carbon spatial mapping requires clear legal targets, as seen in Japan and South Korea. To support carbon-neutral urban planning, these maps should include a comprehensive greenhouse gas (GHG) inventory, covering sectors such as waste and agriculture, beyond buildings and transportation. Additionally, sustaining these maps necessitates a government-led operational organization, as the U.S. model faces resource challenges with NGO partnerships. Lastly, to enhance the efficacy of carbon spatial mapping, applications should extend beyond emissions tracking to urban planning, education, and civic engagement.

[Key Words] GHG, Net-Zero, Carbon-Neutral City, Carbon-Neutral Urban Planning