Importance of the specific order: Yoma 60a; Zevachim 40a
End of the Service: Yoma 70a
Order of the kohen gadol's immersions and the washing of his hands and feet: Yoma 71a
Having the kohen gadol wash first, or dress first, after immersion: Zevachim 19b
What happens if the kohen gadol misses one of his hand/foot-washings: Zevachim 19b
Timing of the special additional offerings: Yoma 70a-b
Ordering of Taking the Incense and Slaughtering of the Bull of the Kohanim: Yoma 60b
Importance of the ordering of slaughterings: Yoma 61a
How many sprinklings of the blood are involved: Zevachim 42b
Importance of the ordering of sprinklings of the blood: Yoma 61a; Zevachim 40a
Which services are absolutely required, on penalty of invalidating the service: Yoma 60b; Zevachim 40a
Attaining forgiveness via the individual services: Yoma 60a