Do we wait until the PERM is approved to apply for H1-B extension?

Hi, my company HR answered the DOL questionnaire and the PERM was officially filed on Apr 16, 2018 (I understand this to be filing the ETA-9089 form to apply for the PERM).

What is the current PERM timeline of my employer filed it on Apr 16, 2018?

My current H1-B visa expires Dec 5th 2018 (6 years + captured time outside country).
I have been a full time employee all 6 years with one job change.

Do we have to wait until the PERM is approved to apply for H1-B extension?

What will my options be if my PERM is not approved by mid October?

What date is considered as the filing date for PERM?

In your chart, the current processing application month is when Labor is filed?
Or is it when the last stage of PERM is filed?

The PERM date/month in this chart is the date when the PERM is actually filed.

In your case, it is Apr 16, 2018.

Your other questions have been answered on other thread here: