Pursuant to the city's model service plan, districts are given the option to create or join an authority. The authority's purpose is to use ARI mill level revenue for the operation of the authority and for the planning, designing, constructing, installing, acquiring, relocating, redeveloping or financing of regional improvements.

Within the city, there are various categories of authorities:

Statutory Regional Transportation Authorities
(C.R.S. 43-4-601, which allows counties and cities to cooperate for the purposes of financing and constructing transportation systems)

Aerotropolis Regional Transportation Authority (ARTA)

Parties include city of Aurora, Adams County and Aerotropolis Area Coordinating Metropolitan District

Establishment agreements for ARTA:
ARTA Establishment Agreement
First Supplement to ARTA Establishment Agreement
Second Supplement to ARTA Establishment Agreement

Learn more about ARTA's projects.

ARI Authorities
(generally formed by three or more metro districts signing an establishment agreement)

ARI Authority where city is a party to the establishment agreement:

South Aurora Regional Improvement Authority (SARIA)

Parties include city of Aurora, Beacon Point Metropolitan District, Blackstone Metropolitan District, Forest Trace Metropolitan District Nos. 1-3, Inspiration Metropolitan District, Kings Point South Metropolitan Districts Nos. 1-3, Overlook at Kings Point South Metropolitan District, Prairie Point Metropolitan District Nos. 1-3, Pronghorn Valley Metropolitan District, Senac South Metropolitan District Nos. 1-4, Sorrel Ranch Metropolitan District, Southlands Metropolitan District No. 2, Wheatlands Metropolitan District, Whispering Pines Metropolitan District No. 1

Establishment agreements for SARIA:
SARIA Establishment Agreement
First Amendment to SARIA Establishment Agreement
 
Learn more about SARIA's projects.

ARI Authority where city is not a party to the establishment agreement:

64th Ave ARI Authority
ARI Authority #1 (no website currently available)
ARI Authority #2 (no website currently available)
ARI Authority #4 (no website currently available)
ARI Authority #5 (no website currently available)
ARI Authority #6 (no website currently available)
Aurora Regional Transportation Authority

Maintenance Organizations

Separately, some metro districts have decided to organize amongst themselves and create an organization and maintain specific project amenities ("maintenance organization"). These "maintenance organizations" are not any authority as required in the model service plan. These "maintenance organizations" should not use the ARI mill levy revenues that are imposed by a metropolitan district. Additionally, the city is not a party to the organizational process to form these organizations. For questions regarding these authorities, please contact them directly:

Painted Prairie Public Improvement Authority
Powhaton Community Authority
Prairie Point Community Amenities Maintenance Authority
Prairie Point Community Authority Board
Saddle Rock South Authority
Tallyn's Reach Authority
The Aurora Highlands Community Authority Board
Windler Public Improvement Authority (no website currently available)