Can an HTTP response omit the Reason-Phrase?

A normal HTTP response looks like:

HTTP/1.0 200 OK

Is it OK to omit what the RFC calls the Reason-Phrase? Something like:

HTTP/1.0 200

The RFC says:

Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF
Reason-Phrase  = *<TEXT, excluding CR, LF>

I understand this as:

• An empty string is OK for the Reason-Phrase
• But there should be a space after the Status-Code anyway

So the following would be valid:

HTTP-Version SP Status-Code SP CRLF

Do I understand the RFC correctly?