If a resident slept in the dwelling the night prior to the census day, he is marked as Present, whether present or not at the time of enumeration.
If the resident did not sleep in the dwelling the night prior to the census day, he is marked as Absent, whether present or not at the time of enumeration.
Residents considered to be absent:
The following residents are not considered to be absent and are not included in the census form of their respective families:
If any of these persons slept in the dwelling the night prior to census day they are recorded as Non-residents.
Students who are living in another city or town, in country or abroad, for more than 6 months are considered to be Present Residents or Absent Residents in the place where they study.
Non-residents:
Non-residents are all of those who slept in the enumerated dwelling the night prior to the census day and who are not usual residents in the dwelling.
[p. 46]
Important note:
All those born before 12 midnight the night prior to the census day and all those who passed away after 12 midnight the night prior to the census day should be enumerated.