
From the U.S. Code Online via GPO Access
[wais.access.gpo.gov]
[Laws in effect as of January 2, 2001]
[Document not affected by Public Laws enacted between
  January 2, 2001 and January 28, 2002]
[CITE: 33USC2020]

 
                TITLE 33--NAVIGATION AND NAVIGABLE WATERS
 
                  CHAPTER 34--INLAND NAVIGATIONAL RULES
 
                           SUBCHAPTER I--RULES
 
                        Part C--Lights and Shapes
 
Sec. 2020. Application (Rule 20)


(a) Compliance in all weathers

    Rules in this Part shall be complied with in all weathers.

(b) Rules concerning lights complied with from sunset to sunrise; other 
        lights

    The Rules concerning lights shall be complied with from sunset to 
sunrise, and during such times no other lights shall be exhibited, 
except such lights as cannot be mistaken for the lights specified in 
these Rules or do not impair their visibility or distinctive character, 
or interfere with the keeping of a proper lookout.

(c) Lights during daylight hours in restricted visibility; other 
        circumstances

    The lights prescribed by these Rules shall, if carried, also be 
exhibited from sunrise to sunset in restricted visibility and may be 
exhibited in all other circumstances when it is deemed necessary.

(d) Rules concerning shapes; compliance by day

    The Rules concerning shapes shall be complied with by day.

(e) Annex

    The lights and shapes specified in these Rules shall comply with the 
provisions of Annex I of these Rules.

(Pub. L. 96-591, Sec. 2, Dec. 24, 1980, 94 Stat. 3423.)

                       References in Text

    Rules in this Part, referred to in par. (a), mean sections 2020 to 
2031 of this title.
    The Rules, referred to in pars. (b) and (d), and these Rules, 
referred to in pars. (c) and (e), respectively, are the Inland 
Navigational Rules which are classified to this subchapter.
    Annex I of these Rules, referred to in par. (e), is to be 
established by the Secretary under section 2071 of this title.

                          Codification

    Section was enacted as part of section 2 of Pub. L. 96-591 which 
enacted the Inland Navigational Rules which comprise this subchapter.

                  Section Referred to in Other Sections

    This section is referred to in section 2031 of this title.
