American Society of Anesthesiologists. Practice Guidelines for Management of the Difficult Airway. 2013.
Practice guidelines from this society are intended to facilitate the management of the difficult airway and to reduce the likelihood of adverse outcomes.

Difficult Airway Society (UK). Strategy for Intubation by Direct Laryngoscopy, No Predicted­-Airway Problem, No Risk of Regurgitation. 2004.
Guidelines from this UK society address initial and secondary intubation strategies, as well as followup care, to address unexpected difficult direct laryngoscopy.

University of California, San Francisco. Difficult Airway—Identification Card. 2009.
This patient identification card, published in the August 2009 issue of Anesthesia & Analgesia, is intended to capture specific details of a patient's airway difficulty and its management. Anesthesia providers can use it to formally notify patients about their difficulty with airway management and instruct them to carry the card and to show it to subsequent anesthesia providers.