Date: 2022-07-04Category: Draft RegulationState: Union GovernmentCountry: India
Draft revision to CAR Section 9 Series L Part VII - Watch duty time limitations and rest requirements of air traffic services personnel engaged in air traffic services
**Executive Summary**
This document is Civil Aviation Requirement (CAR), Section 9, Series L, Part VII, issued by the Director General of Civil Aviation, effective November 5th, 2020. It defines watch duty time limitations and rest requirements for air traffic services personnel. It also lists duties and responsibilities for Air Navigation – Traffic Service Provider and Air Traffic Services Personnel.
**Key Points / Main Content**
* **Applicability:**
* Applies to air navigation service providers, all Air Traffic Service providers, and licensed air traffic services personnel.
* **Definitions:**
* Defines terms such as "Airport Acceptance Rate", "Air Traffic Controller Schedule", "ATC Capacity", "Duty," "Duty Period", "Night Duty", "Non-duty period / Rest Period", "Time-in-position (Operational duty)" and "Unforeseen operational circumstance".
* **Air Navigation – Traffic Service Provider's Responsibilities:**
* Must prepare and publish the Air Traffic Controller Schedule/duty roster at least five days in advance.
* Must ensure watch duty time limitations are not exceeded.
* Must ensure that non-duty period/rest period requirements are met.
* Must ensure air traffic services personnel are within the watch duty time limitation before permitting him to operate the watch.
* Must identify a process for assigning unscheduled duties that allow the air traffic controllers to avoid extended period of being wake.
* **Air Traffic Services Personnel Responsibility:**
* Must comply with the watch duty time limitations.
* Cannot perform duty beyond the watch duty time limitations.
* **Watch Duty Time Limitations:**
* Duty period shall not exceed 12 hours.
* Aggregate of duty period hours shall not exceed 45 hours within a defined period of 144 consecutive hours or 6 consecutive days of duty.
* Minimum interval between duty periods varies based on airport aircraft movement volume:
* At least 11 hours for airports with over 100 aircraft movements/day.
* At least 7 hours for airports with 30-100 aircraft movements/day.
* At least 5 hours where the workload for any part of the day is less and the activity is spasmodic rather than continuous.
* Air traffic personnel shall not be rostered or called to perform Air Traffic Control duty in a continuous stretch of more than six days.
* **Operational Duty (Time-in-position) Limitations:**
* Operational duty shall not exceed 2 hours except during the period from 2230 hrs. to 0600 hrs.
* From 2230 hrs to 0600 hrs the operational duty shall not exceed 4 hours; it shall not exceed 8 hrs. at airports having less than 4 aircraft movements during this period.
* **Night Duty Limitations:**
* Night duty is defined as starting at 0130 local and ending at 0529 local, except for the Air Traffic Service Units in the North Eastern States where the night duty shall be defined as starting at 1230 local and ending at 0429 local.
* A duty which covers all or part of the period of night duty shall not exceed 12 hours.
* No more than 3 consecutive duties shall be worked which cover all or part of the period of night duties.
* **Variation from Watch Duty Time Limitations:**
* DGCA may vary limitations or air navigation services provider with prior approval of Member (ANS) ATS-in-charge/WSO (Watch Supervisor Officer) may modify watch duty time limitations in unforeseen operational circumstances.
* Application for variation shall be communicated in writing to DGCA.
* Records of ex-post facto approval shall be kept for a period of 24 months.
* **Records:**
* ATS provider must keep records of duties performed and rest periods for 24 months.
* Records must include start, duration, and end times for operational duty periods, duty periods, and non-duty/rest periods for each air traffic services personnel.
* **Oversight:**
* DGCA may conduct inspections/audits to ensure compliance.
**Impact Analysis**
**Stakeholder: Air Navigation – Traffic Service Provider (ANS ATS)**
* **Impact:** Must adhere to detailed requirements for scheduling, duty time limits, and rest periods.
* **Action Required:** Implement processes to comply with the new limitations, including adjusting scheduling practices and maintaining accurate records.
**Stakeholder: Air Traffic Services Personnel**
* **Impact:** Subject to new restrictions on duty hours and required rest periods.
* **Action Required:** Comply with duty time limitations and rest requirements.
Key Entities Referenced
Aircraft Rules, 1937: The existing laws under which this CAR is issued.
Civil Aviation Requirements (CAR): Document establishing prescriptive limitation regulations in respect of air traffic services personnel engaged in Air Traffic Service.
Director General of Civil Aviation (DGCA): The regulator with the power to specify watch duty time limitations and grant variations.
Air Navigation Service Provider (ANSP): The entity responsible for ensuring compliance with watch duty time limitations.
GOVERNMENT OF INDIA
OFFICE OF DIRECTOR GENERAL OF CIVIL AVIATION
TECHNICAL CENTRE, OPP SAFDARJANG AIRPORT, NEW DELHI
CIVIL AVIATION REQUIREMENTS
SECTION 9 –AIRSPACE AND
AIR NAVIGATION SERVICES STANDARDS
SERIES L PART VII
DATED 21ST OCTOBER 2020
EFFECTIVE: 05th Nov 2020
F. No.: DGCA-21048/10/2018-ANS
Sub: Watch duty time limitations and rest requirements of air traffic services
Personnel engaged in air traffic services.
1. INTRODUCTION
Rule 116 of the Aircraft Rules, 1937 stipulates that every holder of an Air Traffic
controller’s licence shall follow the watch duty time limitations specified by the
Director General.
This Civil Aviation Requirement (CAR) lays down the prescriptive limitation
regulations in respect of air traffic services personnel engaged in Air Traffic
Service and is issued under the provisions of Rule 133A of the Aircraft Rules,
1937.
2. APPLICABILITY
The watch duty time limitations contained in this CAR are applicable to air
navigation service provider all Air Traffic Service provider(s) and licenced air
traffic services personnel engaged in provision of air traffic service.
3. DEFINITIONS
Airport Acceptance Rate: - A dynamic parameter specifying the number of
arriving aircraft that an airport, in conjunction with terminal airspace, ramp
space, parking space and terminal facilities can accept under specific
conditions during any consecutive 60-minute period.
Air Traffic controller Schedule: - A plan for allocating air traffic controller
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duty periods and non-duty periods over a period of time, otherwise referred to
as roster.
ATC capacity: - It is the maximum number of aircraft which can be accepted
over a given period of time within the airspace or at the aerodrome concerned.
Note-The most appropriate measure of capacity is likely to be the
sustainable hourly traffic flow. Such hourly capacities can, for example, be
converted into daily, monthly or annual values.
Duty- Any task that an air traffic controller is required by an air traffic services
provider to perform. These tasks include those performed during time-in-
position administrative work and training.
Duty Period: Period which starts when an air traffic controller is required by
an air traffic services provider to report for or to commence a duty and ends
when that person is free from all duties.
Night Duty: A period of night duty shall be defined as starting at 0001 hrs. and
ending at 0429 hrs. of Indian Standard Time for all airports.
Non-duty period / Rest Period: - A continuous and defined period of time,
subsequent to and/or prior to duty, during which the air traffic controller is free
of all duties.
Time-in-position (Operational duty): - The period of time when an air traffic
controller is exercising the privileges of the air traffic controller’s licence at an
operational position.
Unforeseen operational circumstance: - Unexpected conditions that could
not reasonably have been predicted and accommodated, such as adverse
weather, natural calamity, medical emergency, national requirement for relief
and rescue operations (mission oriented), equipment malfunction, runway
closure, which may result in necessary on-the-day operational adjustments.
4. AIR NAVIGATION TRAFFIC SERVICE PROVIDER’S RESPONSIBILITY
4.1 The ANS ATS provider should prepare and publish the Air Traffic controller
Schedule /duty roster sufficiently at least five days in advance to provide air
traffic services personnel the opportunity to plan adequate rest. The duty
roster shall contain the date of publication and details of issuing authority
(ATS -in-charge/WSO).
4.2 The ANS ATS provider shall ensure that watch duty time limitation is not
exceeded and that non-duty period / rest period requirements are met,
specified in this CAR.
4.3 The ANS ATS provider shall ensure that air traffic services personnel are
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within the watch duty time limitation before permitting him to operate the
watch.
4.4 The ANS ATS service provider shall identify a process for assigning
unscheduled duties that allow the air traffic controllers to avoid extended
period of being wake.
5. AIR TRAFFIC SERVICES PERSONNEL RESPONSIBILITY
An air traffic services personnel shall comply with the watch duty time
limitations made as per Perspective limitation regulations as specified in the
CAR.not perform duty beyond the watch duty time limitations.
6. WATCH DUTY TIME LIMITATIONS
DUTY PERIOD
Period which starts when an air traffic controller is required by an air
navigation service provider to report for or to commence a duty and ends
when that person is free from all duties.
6.1 Limit on duty period
6.1.1 The duty period shall not exceed 12 hours.
6.1.2 The aggregate of duty period hours shall not exceed 45 hours within a
defined period of 144 consecutive hours or 6 consecutive days of duty.
6.2 Interval between duty period
6.2.1 There must be at least 11 hours between the end of one duty
period and the beginning of the next duty at airports having more
than 100 aircraft movements per day.
6.2.2 There must be at least 7 hours between the end of one duty period and
the beginning of the next duty at airports having aircraft movements
more than 30 but less than 100 per day.
6.2.3 At other airports, where only morning and/or evening shift pattern is
followed or split watch hours during the day, there must be at least 5
hours between the end of one duty period and the beginning of the next
duty at ATC units where workload for any part of the day is less and
the activity is spasmodic rather than continuous.
Note: Aircraft movement - The number of average daily aircraft movements
Schedule/Non-Schedule in preceding two years taken on 1st October of
each year.
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There must be at least 12 hours between the end of one duty period and the
beginning of the next duty.
6.3 Limit on and interval following Consecutive duty period
6.3.1 The air traffic personnel shall not be rostered or called to perform Air
Traffic Control duty in a continuous stretch of more than six days. No
more than 6 consecutive days of duty shall be worked.
6.3.2 If the maximum number of consecutive days of duty is rostered, there
shall be a minimum interval of 24 hours between the end of one
consecutive period of duty and the next.
6.4 OPERATIONAL DUTY (Time-in-position)
The period during which an air traffic controller is exercising the privileges
of the licence at an operational position.
6.4.1 Limit on operational duty
No period of operational duty shall exceed 2 hours except during the period
from 2230 hrs. to 0600 hrs.
In the period from 2230 hrs. to 0600 hrs. the operational duty shall not
exceed 4 hours. However, the operational duty shall not exceed 8 hrs. at
airports having less than 4 aircraft movements during this period.
No period of operational duty shall exceed 2 hours, wherever
a) H24 operations are in place in an ATC unit; or
b) The number of aircraft movement is more than the 50% of
defined Airport Acceptance Rate/ ATC unit capacity; or
c) Any other criteria established by ANSP for this purpose and
approved by DGCA.
6.4.2 Break in operational duty
6.4.2.1 No operational duty shall exceed 2 hours, without there being a
break not less than 30 minutes, taken during or at the end of
that period, however during the period between 2230 to 0600
hrs. the break at the end of duty will be provided on pro-rata
basis (e.g. 120 minutes after 3 hours or 240 minutes after 4
hours) except at airports having less than 4 aircraft movements
during this period Subject to condition mention in the para 6.2.1
of this CAR.
6.4.2.2 At ATC units where workload for any part of the day is less than
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the 50% of defined Airport Acceptance Rate/ ATC unit capacity
and the activity is spasmodic rather than continuous, periods of
operational duty, at these times, may be extended to a
maximum of four hours, provided that the following break is
taken pro-rata (e.g. 45 minutes after 3 hours or 60 minutes after
4 hours. This period may be extended upto 5 hrs. to cater to
airport with watch hours upto 6 hours, provided there will be a
break of minimum 5 hours after the above duty).
NIGHT DUTIES
A period of night duty shall be defined as starting at 0130 local and
ending at 0529 local, except for the Air Traffic Service Units in the North
Eastern States where the night duty shall be defined as starting at 1230
local and ending at 0429 local.
6.4.3 Limit on night duty
a) A duty which covers all or part of the period of night duty shall not
exceed 12 hours.
b) No more than 3 consecutive duties shall be worked which cover all
or part of the period of night duties.
6.4.4 Interval after night duties
a) A minimum period of 46 hours (Two local nights) shall occur between
the end of duties which cover all or part of the period of night duty and
the commencement of the next period of duty. However this period
may be reduced to 29 Hrs. at airports having less than 100 aircraft
movements per day (Number of average daily aircraft movements
Schedule/Non-Schedule in preceding two years taken on 1st October
of each year).
b) A minimum period of 24 hours (One local night) shall occur between
the end of duties which cover all or part of the period of night duty and
non-operational duties like Simulator training, Refresher training, Skill
enhancement/ evidence-based training etc.
A minimum period of 48 hours shall occur between the end of duties
which cover all or part of the period of night duty and the commencement
of the next period of duty.
7 VARIATION FROM WATCH DUTY TIME LIMITATIONS
7.1 By the DGCA
7.1.1 The DGCA at its discretion may vary any limitations provided in the CAR.
Such variations may be made either as a requirement of the DGCA, or
in exceptional or extraordinary circumstances, on the request of an Air
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Traffic Service Provider. The application for variation shall be
communicated in writing to DGCA.
7.1.2 The application of variation from watch duty time limitations shall include
the following details;
a) The published operational hours of the unit/station;
b) The reason for the need to deviate;
c) The extent of the deviation;
d) The period/date and time of enactment of the deviation;
e) A safety case, outlining mitigations, to support the deviation,
f) Such other information considers to be relevant.
7.1.3 Variation from watch duty time limitations may be made or granted by
DGCA upon such conditions, duration as considered appropriate.
7.2 By the Air navigations services provider
7.2.1 In Unforeseen Operational circumstance at ATS station an air navigations
services provider with prior approval of Member (ANS) ATS-in-
charge/WSO (Watch Supervisor Officer) may modify watch duty time
limitations at a unit and obtain ex-post facto approval of Member (ANS).
Such modification may only be made to overcome unforeseen difficulties
at the unit, provided that modification only be made if the safety and
effectiveness of Air Traffic Control will be maintained. All the records of ex-
post facto approval shall be kept for a period of 24 months.
8. RECORDS
8.1 The ATS provider to ascertain that the prescriptive limitation regulations
are functioning, therefore the records shall be kept for 24 months of the
duties performed and rest periods provided.
8.2 The ATS provider shall ensure that these records include for each air
traffic services personnel at least:
8.2.1 The start, duration and end of each Operational duty period;
8.2.2 The start, duration and end of each duty period;
8.2.3 Non-duty periods /rest periods.
9. Oversight
DGCA may carry out inspection/audit of ATS provider/ air traffic services
personnel at any time to ensure compliance of the provision of the CAR.
Relevant records and log books shall be provided promptly to DGCA officers
during such inspections / audits.
Director General of Civil Aviation
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