Energency H4 visa processing during covid

USA H4 Visa
1

My husband is in the US and I’m in India. Due to covid, I was unable to get an appointment and process my H4 visa. Am I eligible for the emergency appointments/visa to have my H4 processed and for me to travel to the US? Thanks

2

Hi Meghana,
You are eligible to apply under the emergency appointment, go ahead and apply

3

Thanks for your quick reply! Can you please share the guidelines for eligibility for emergency visas?
Also how would the previous be different any ideas??