# Risk-Limiting Audits with Arlo

Arlo is software for managing and conducting a Risk-Limiting Audit (RLA). The code for Arlo is [open-source and freely available](https://github.com/votingworks/arlo) for anyone to use and host. VotingWorks provides a [hosted version of Arlo](https://voting.works/risk-limiting-audits/) and customer support when conducting an RLA.  

Arlo supports ballot polling, batch comparison, ballot comparison, and hybrid RLAs for single jurisdiction to statewide audits.

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[RiskLimitingAudits.org](https://risklimitingaudits.org/) describes the history and process of conducting an RLA.&#x20;