§ 10.320 Provider alert gateway requirements. This section specifies the functions that each Participating Commercial Mobile Service provider is required to support and perform at its CMS provider gateways. ( a ) *General.* The CMS provider gateway must provide secure, redundant, and reliable connections to receive Alert Messages from the Federal alert gateway. Each CMS provider gateway must be identified by a unique IP address or domain name.
( b ) *Authentication and validation.* The CMS provider gateway must authenticate interactions with the Federal alert gateway, and validate Alert Message integrity and parameters. The CMS provider gateway must provide an error message immediately to the Federal alert gateway if a validation fails.
( c ) *Security.* The CMS provider gateway must support standardized IP-based security mechanisms such as a firewall, and support the defined WEA “C” interface and associated protocols between the Federal alert gateway and the CMS provider gateway.
( d ) *Geographic targeting.* The CMS provider gateway must determine whether the provider has elected to transmit an Alert Message within a specified alert area and, if so, map the Alert Message to an associated set of transmission sites.
( e ) *Message management* — ( 1 ) *Formatting.* The CMS provider gateway is not required to perform any formatting, reformatting, or translation of an Alert Message, except for transcoding a text, audio, video, or multimedia file into the format supported by mobile devices.
( 2 ) Reception. The CMS provider gateway must support a mechanism to stop and start Alert Message deliveries from the Federal alert gateway to the CMS provider gateway.
( 3 ) Prioritization. The CMS provider gateway must process an Alert Message on a first in-first out basis except for National Alerts, which must be processed before all non-National Alerts.
( 4 ) Distribution. A Participating CMS provider must deploy one or more CMS provider gateways to support distribution of Alert Messages and to manage Alert Message traffic.
( 5 ) Retransmission. The CMS provider gateway must manage and execute Alert Message retransmission, and support a mechanism to manage congestion within the CMS provider's infrastructure.
( f ) *CMS provider profile.* The CMS provider gateway will provide profile information on the CMS provider for the Federal alert gateway to maintain at the Federal alert gateway. This profile information must be provided by an authorized CMS provider representative to the Federal alert gateway administrator. The profile information must include the data listed in Table 10.320(f) and must comply with the following procedures: ( 1 ) The information must be provided 30 days in advance of the date when the CMS provider begins to transmit WEA alerts.
( 2 ) Updates of any CMS provider profiles must be provided in writing at least 30 days in advance of the effective change date. Table 10.320(f)—CMSP Profile on Federal Alert Gateway
Profile parameter
Parameter election
Description CMSP Name

Unique identification of CMSP. CMSP gateway Address
IP address or Domain Name Alternate IP address
Optional and subject to implementation. Geo-Location Filtering
<yes/no>
If “yes” the only CMAM issued in the listed states will be sent to the CMSP gateway.If “no”, all CMAM will be sent to the CMSP gateway. If yes, list of states
CMAC Geocode for state
List can be state name or abbreviated state name.
( g ) *Alert logging.* The CMS provider gateway must perform the following functions: ( 1 ) *Logging requirements.* Log the CMAC attributes of all Alert Messages received at the CMS Provider Alert Gateway, including time stamps that verify when the message is received, and when it is retransmitted or rejected by the Participating CMS Provider Alert Gateway. If an Alert Message is rejected, a Participating CMS Provider is required to log the specific error code generated by the rejection.
( 2 ) *Maintenance of logs.* Participating CMS Providers are required to maintain a log of all active and cancelled Alert Messages for at least 12 months after receipt of such alert or cancellation.
( 3 ) *Availability of logs.* Participating CMS Providers are required to make their alert logs available to the Commission and FEMA upon request. Participating CMS Providers are also required to make alert logs available to emergency management agencies that offer confidentiality protection at least equal to that provided by the federal Freedom of Information Act (FOIA) upon request, but only insofar as those logs pertain to Alert Messages initiated by that emergency management agency.
[73 FR 43117, July 24, 2008, as amended at 78 FR 16808, Mar. 19, 2013; 81 FR 75725, Nov. 1, 2016; 86 FR 46790, Aug. 20, 2021]