Limitations established within the fatigue management system must take into account all relevant factors contributing to fatigue such as, in particular, number of sectors flown, time-zone crossing, sleep deprivation, disruption of circadian cycles, night hours, positioning, cumulative duty time for given periods of time, sharing of allocated tasks between crew members, and also the provision of augmented crews.
Ní mór na teorainneacha a bhunaítear laistigh den chóras bainistíochta tuirse na fachtóirí ábhartha uile a chuireann le tuirse a chur san áireamh amhail, go háirithe, líon na gcriosanna trínar eitlíodh, trasnú amchriosanna, easpa codlata, cur isteach ar rithim laethúil na colainne, uaireanta oíche, suiteáil, am dualgais carnach ar feadh tréimhsí áirithe, cúraimí leithdháilte a roinntear ar chomhaltaí foirne chomh maith le soláthar foirne méadaithe.