Object Class: Obstruction

Acronym: OBSTRN (P,L,A)

Code: 86

Set Attribute_A: CATOBS; CONDTN; EXPSOU; HEIGHT; NATCON; NATQUA; NATSUR; NOBJNM; OBJNAM; PRODCT; QUASOU; SOUACC; STATUS; TECSOU; *VALSOU; VERACC; VERDAT; VERLEN; *WATLEV;

Set Attribute_B: INFORM; NINFOM; NTXTDS; SCAMAX; SCAMIN; TXTDSC;

Set Attribute_C: RECDAT; RECIND; SORDAT; SORIND;

Definition:

In marine navigation, anything that hinders or prevents movement, particularly anything that endangers or prevents passage of a vessel. The term is usually used to refer to an isolated danger to navigation... (IHO Dictionary, S-32, 5th Edition, 3503)

References:

INT 1: IK 1, 31, 40-43, 46.1-2; IL 21, 23; IQ 42;

S-4: 422.8-9; 431.6; 445.1; 447.5;

Remarks:

Distinction: wreck; fishing facility; marine farm/culture; depth area; underwater/awash rock; water turbulence;