# Quotas for routing control
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Routing control in Amazon Application Recovery Controller (ARC) is subject to the following quotas (formerly referred to as limits).


| Entity | Quota | 
| --- | --- | 
| Number of clusters per account | 2 | 
| Number of control panels per cluster | 50 | 
| Number of routing controls per control panel | 100 | 
| Total number of routing controls (in all control panels) per cluster | 300 | 
| Number of safety rules per control panel | 20 | 
| Number of routing controls per [UpdateRoutingControlStates](https://docs.amazonaws.cn/routing-control/latest/APIReference/API_UpdateRoutingControlStates.html) operation call | 10 | 
| Number of mutating API calls to a cluster endpoint, per second | 3 |