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  2. Department of Municipal Administration and Water Supply ...

    en.wikipedia.org/wiki/Department_of_Municipal...

    The local administration under the department consists of 15 municipal corporations, 121 municipalities and 528 town panchayats. [2] [3] Greater Chennai Corporation, established in 1688, is the second oldest in the world and Tamil Nadu was the first state to establish town panchayats as a new administrative unit.

  3. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    Code 1: A time critical case with a lights and sirens ambulance response. An example is a cardiac arrest or serious traffic accident. Code 2: An acute but non-time critical response. The ambulance does not use lights and sirens to respond. An example of this response code is a broken leg. Code 3: A non-urgent routine case. These include cases ...

  4. Missile approach warning system - Wikipedia

    en.wikipedia.org/wiki/Missile_approach_warning...

    These jammers have been around since the 1970s and when the correct jamming modulation techniques were applied, were reasonably effective against 1st-generation amplitude-modulated MANPADS, which operated in the near-IR band (1 to 2 micrometres (μm)). The arrival of 2nd- and 3rd-generation MANPADS changed that.

  5. Police code - Wikipedia

    en.wikipedia.org/wiki/Police_code

    A police code is a brevity code, usually numerical or alphanumerical, used to transmit information between law enforcement over police radio systems in the United States. Examples of police codes include "10 codes" (such as 10-4 for "okay" or "acknowledged"—sometimes written X4 or X-4), signals, incident codes, response codes, or other status ...

  6. Tennessee Department of Safety and Homeland Security

    en.wikipedia.org/wiki/Tennessee_Department_of...

    The TDOS was established in 1939 by the Tennessee General Assembly to exercise authority over the THP. [2] Over the decades, the agency has evolved to meet new challenges, such as drug trafficking, the issuance of drivers' licenses, and terrorism. Therefore, the TDOS currently comprises three divisions: the THP, the Driver License Services ...

  7. Wireless Emergency Alerts - Wikipedia

    en.wikipedia.org/wiki/Wireless_Emergency_Alerts

    An example of a Wireless Emergency Alert on an Android smartphone, indicating a Tornado Warning in the covered area. Wireless Emergency Alerts (WEA), formerly known as the Commercial Mobile Alert System (CMAS) and, prior to that, as the Personal Localized Alerting Network (PLAN), [1] is an alerting network in the United States designed to disseminate emergency alerts to cell phones using Cell ...

  8. Specific Area Message Encoding - Wikipedia

    en.wikipedia.org/wiki/Specific_Area_Message_Encoding

    The text of the header code is a fixed format: <Preamble>ZCZC-ORG-EEE-PSSCCC+TTTT-JJJHHMM-LLLLLLLL- This is broken down as follows: 1. A preamble of binary 10101011 (0xAB in hex) repeated sixteen times, used for "receiver calibration" (i.e., clock synchronization), then the letters ZCZC as an attention to the decoder (a message activation method inherited from NAVTEX).

  9. Medical Priority Dispatch System - Wikipedia

    en.wikipedia.org/wiki/Medical_Priority_Dispatch...

    For instance, a suspected cardiac or respiratory arrest where the patient is not breathing is given the MPDS code 9-E-1, whereas a superficial animal bite has the code 3-A-3. The MPDS codes allow emergency medical service providers to determine the appropriate response mode (e.g. "routine" or "lights and sirens") and resources to be assigned to ...