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      <marc:subfield code="a">Aerodrome standards and recommended practices : </marc:subfield>
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      <marc:subfield code="a">5th edition.</marc:subfield>
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      <marc:subfield code="a">[Ottawa] : </marc:subfield>
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      <marc:subfield code="c">[2020]</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 1st amendment of the 5th edition (confer page 2).</marc:subfield>
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      <marc:subfield code="a">"TP312 5th edition."</marc:subfield>
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      <marc:subfield code="a">"Effective date: September 15th 2015."</marc:subfield>
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      <marc:subfield code="a">"Last updated: 01/15/2020."</marc:subfield>
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      <marc:subfield code="a">Includes bibliographical references.</marc:subfield>
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    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"These standards complement subpart 302 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, TP312 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 20.</marc:subfield>
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      <marc:subfield code="t">Aérodromes - normes et pratiques recommandées : </marc:subfield>
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      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">13.90 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2026/tc/T52-4-257-2020-eng.pdf</marc:subfield>
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      <marc:subfield code="a">TP 312E</marc:subfield>
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