There are two types of accounts for using ACG resources: cluster accounts and cloud accounts. You can sign up for either or both depending on your needs. The cluster account provides access to computing resources useful in massive parallel problem solving. The cloud account provides access to virtual machines that can be used to support your research teams.
Look for the online forms.
For cluster computing: https://acg.umaine.edu/training-support/hpc/marconi_account/
For cloud computing: https://acg.umaine.edu/training-support/getting-started-with-vms/vmaccountrequest/