The service credits available for S3 services (except those listed above) are as follows: For EC2 (and related services), the available credits are as follows: AWS offers service credits for non-compliance with availability SLAs, but it is important to note that they are not automatically applied. To earn service credits for downtime, AWS customers must assert a credit entitlement by opening a file at the AWS Help Center with the words “Credit Request SLA” in the subject line and providing details about the dates and times of default or default for which you are claiming credit. secured by protocols and resource identifiers for the relevant services. When service credits are available for the outage, they are normally used as a credit on future invoices for the same service. For all RDS instances hosted in multiple Availability Zones (with the “Multi AZ” setting set to “True”), Amazon guarantees 99.5% availability on each monthly billing cycle. This allows up to 3.65 hours of downtime per month. For applications that cannot tolerate this downtime, customers should consider hosting their databases in multiple regions or using another database service like Amazon Aurora, which has a 99.99% SLA. So here you have some important things to keep in mind and keep in mind when trying to understand Amazon service agreements. The most important advice I would give is not to rely on service level agreements to ensure the availability of your applications. The SLA provides some instructions on the hours of operation you can expect, but the service credits offered, provided you`re thinking about using them, probably won`t help delay your application downtime and the likely business consequences in terms of lost productivity or perhaps even lost revenue. It`s also important to make sure you have good observability of your application infrastructure – if you don`t recognize service outages, you can`t assert claims against ALS, so you risk missing credits. You need to be able to back up your claims with log files – so make sure you know where to get them! The Amazon EC2 Service Level Agreement includes several compute services, including: This Amazon S3 Service Level Agreement (“SLA”) is a guideline that governs the use of Amazon S3 and Amazon S3 Glacier (an “Amazon S3 Service”) pursuant to the terms of the Amazon Web Services Customer Agreement (the “AWS Agreement”) between Amazon Web Services, Inc. .