Conditional Formatting to find errors in timesheet report

Hello, every week I have to check employees timesheets to see if they coded their time to the correct jobs or divisions. I pull a report in our system which is then exported to Excel and it takes a very long time to look for their errors and then correct each one. That's another story. I was thinking of a conditional formatting that would highlight the errors in red font if they don't meet the criteria. There are a lot of conditions so I don't know if this might need some kind of macro instead.

Some employees charge their time to their division 712,713,717 or 718. If they charge to any other division other than theirs, its wrong.
These employees above might also charge their time to active jobs. If they use an active job (which starts with 710000) - according to their division, their sub job is added as shown in the tab called Timesheet Report. Highlighted in blue as an example.

These employees also charge time to what we call a P-job (a prospective job that hasn't become "active" as the 710000 jobs). These jobs don't have a sub job. they start with "P". However, sometimes they might charge to a P-job that might be inactive. which would literally display the word "inactive" in the report. It only shows in this report, but not displayed when they enter their time. I know.. I know..

Div. 712 - if they charge to a 710000 job, their sub job is .53 - and their phase and category codes should be 01.3000.00 > LS
Div. 713 - if they charge to a 710000 job, their sub job is .52 - and their phase and category codes should be 01.3000.00 > LS
Div. 718 - if they charge to a 710000 job, their sub job is .54 - and their phase and category codes should be 01.3000.00 > LS

Now, if they are sick, on vacation, an employee should charge his/her time to their division, and it should look like this for example:
a 712 employee = ZZ712 - 01.3000.00 > SICK or ZZ712 - 01.3000.00 >VACA

If they are in division 717 - they don't charge time to jobs, only to their division. Another thing with them is this:
- office employees charge to phase codes 01.3000.00 > TLAD
- field employees charge their time to 01.3000.00 > TLOE

There is one job called Foxhound (which is a special job) that if anyone charges their time to it, the phase and category is 01.3000.00 > LR not LS.. But its only for this job.

I do have one employee that splits his time into 3 divisions - which makes this even more complicated.

After typing all this up, Macro right? or manual checking?