> For the complete documentation index, see [llms.txt](https://help.rentzap.com/help-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.rentzap.com/help-docs/key-concepts/first-in-first-out-queue.md).

# First In First Out Queue

First In, First Out (FIFO): The fairest method for processing multiple applicants.

Timeline Example:

12:00 PM - Applicant A starts application

12:30 PM - Applicant B starts application

1:00 PM - Applicant B completes application ← FIFO Position #1

2:00 PM - Applicant C completes application ← FIFO Position #2

3:00 PM - Applicant A completes application ← FIFO Position #3

Result:

* Applicant B reviewed first (completed first)
* Applicant C reviewed second
* Applicant A reviewed third (even though they started first)

Fair Housing Compliance:

* Objective ordering
* No discrimination possible
* Clear, transparent rules
* Documented process