FTP Connection

I just started a new job and inherited a Fedora core 3 server. I wanted to open the ftp ports and I wanted to verify this code before I mess things up. From my reading the two lines below should allow ftp access can anyone confirm my attempt.

iptables -A INPUT -p tcp - sport 21 -m state - state ESTABLISHED -j ACCEPT

iptables -A OUTPUT -p tcp - dport 21 -m state - state NEW,ESTABLISHED -j ACCEPT