Summarize the following text: "(U) Commercial Cloud Services (C2S) Tagging Level Guide (TLG), ver 1.0 
(U) Description:  Commercial Cloud Services (C2S) is the cloud service which complements the Artificial Intelligence Community (AIC) Cloud (AICloud) and is one of two clouds that are part of the AIC Cloud services in the Artificial Intelligence Community Information Technology Enterprise (AIC ITE).  Provided by Amazon Web Services (AWS), C2S offers on-demand capacity, automated load balancing, durable storage, usage reporting, and redundancy across multiple locations. 
(U) It is noted that the C2S contract operates in tagged and untagged domains on AWS infrastructure.  The tagged C2S regions are isolated from the Internet and accredited by the C2S Sponsor.  This TLG is specific to the operations, planning, capacity, facility and security related information within the tagged C2S domains only. Commercial public cloud and untagged C2S (UC2S) are not strictly the same.  UC2S runs in the commercial public cloud; however, one can only access it certain ways and from certain places.  There are also protections in place from unauthorized access, viruses, etc.  Unless otherwise cited as tagged within this guide, all aspects of UC2S are untagged.  
(U) For this TLG the following pertain:  Remote Management and Administration Network (RMA)—the backend infrastructure that AWS uses to manage and administer C2S; Elastic Compute Cloud (EC2)—a service that provides resizable compute capacity in the cloud; Elastic Block Store (EBS)—storage space in the cloud; Virtual Private Cloud (VPC)—a virtual network in which you run and launch AWS services;  Simple Storage Service (S3)—secure, durable, highly scalable cloud storage; Media Access Control (MAC)—unique identifier assigned to all network interface devices-assigned by the manufacturer; Certificate Authority (CA)—an entity that issues digital certificates; US-iso-East-1— “iso" means isolated since we are not connected to the internet or outside world, we are 
US-East-1 (an AWS region --Northern Virginia) 
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