Table 3 Level of recommendation.
| Level of recommendation | Description | Syntax |
|---|---|---|
| A | Strong recommendation | must |
| B | Recommendation | should |
| 0 | Open recommendation | may |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.