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      <marc:subfield code="a">Aerodrome standards and recommended practices - 5th edition</marc:subfield>
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      <marc:subfield code="a">Issued also in French under title: Aérodromes - normes et pratiques recommandées : aérodromes terrestres.</marc:subfield>
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      <marc:subfield code="a">This publication is the 4th amendment of the fifth edition (confer pages 3-4).</marc:subfield>
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      <marc:subfield code="a">"TP 312E (Revised 12/2025)."</marc:subfield>
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      <marc:subfield code="a">"September 2015."</marc:subfield>
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      <marc:subfield code="a">"TC-1008062."</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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      <marc:subfield code="a">"These standards complement subparts 2 and 5 of Part III of the Canadian Aviation Regulations (CARs). They set out requirements such as physical characteristics, obstacle limitation surfaces, visual aids and technical services the aerodrome operator at a certified land aerodrome (airport) provides to support aircraft operations. Other standards, established under Part III of the CARs form part of the overall safety specifications to satisfy the requirements of aerodrome certification. Unlike previous editions of TP 312 that were of a design-based concept, TP 312 5th edition incorporates an operationally based concept. The implementation of standards under the operational concept is primarily based on aerodrome operational level and physical aircraft characteristics, …"--Introduction, page 21.</marc:subfield>
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