NOTE: For UMG/SME users, make sure you're logged into Vevo Support and follow the instructions here: Subtitles & Captions (SME/UMG)
In order to add subtitles (sometimes referred to as closed captions or CC) to your video, you must provide Vevo with an SRT file
Process
Please send over an SRT file label with the language you wish to upload and the ISRC of the video to content@vevo.com