I attached the .scc file and captioning shows up fine in the program monitor. Is there a way for me to export that captioning in the MP4 file?

Some facts I'm adding to Premiere Pro Help. Unfortunately, your problem is noted:

- Adobe Premiere Pro does not create closed caption data
- Closed captioning is not preserved when nesting sequences
- Dynamic link will not preserve closed captioning data when sending a sequence to Encore
- Changing the timecode start time is not honored when attaching files to a sequence
- Premiere Pro does NOT embed the closed captioning data in exported files
Third party capture cards may not support closed captioning (AJA Kona cards)
HDTV (CEA-708) .mcc data cannot be output rather only viewed natively