# Amazon EMR endpoints and quotas
Amazon EMR

To connect programmatically to an AWS service, you use an endpoint. AWS services offer the following endpoint types in some or all of the AWS Regions that the service supports: IPv4 endpoints, dual-stack endpoints, and FIPS endpoints. Some services provide global endpoints. For more information, see [AWS service endpoints](rande.md).

Service quotas, also referred to as limits, are the maximum number of service resources or operations for your AWS account. For more information, see [AWS service quotas](aws_service_limits.md).

The following are the service endpoints and service quotas for this service.

## Service endpoints


[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/general/latest/gr/emr.html)

If you specify the general endpoint (elasticmapreduce.amazonaws.com), Amazon EMR directs your request to an endpoint in the default Region. For accounts created on or after March 8, 2013, the default Region is us-west-2; for older accounts, the default Region is us-east-1.

## Service quotas


[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/general/latest/gr/emr.html)

Amazon EMR throttles the following API requests for each AWS account on a per-Region basis. For more information about how throttling is applied, see [API Request Throttling](https://docs.aws.amazon.com//AWSEC2/latest/APIReference/throttling.html) in the *Amazon EC2 API Reference*.