You'll need an Auth Code to transfer a domain from one registrar to another. Your existing provider will issue this code to you to authorise the transfer.
Specifically, Auth/EPP codes are required for...
.com, .net, .org, .us, .biz, .info, .me, .co, .io, .ca, .tv, .in, .mobi, .cc, .pe, .com.pe, .net.pe, .org.pe,.tech, .top, .party, .loan, .faith and other new gTLD/country code TLD domain transfers.