winnie, looks like they may:
UL Lists this product:
[quote}TUBING, FLEXIBLE NONMETALLIC
(YCTR)
These listings include woven flexible nonmetallic tubing (fiber loom) in
trade sizes 7/32 to 2-1/2 in. incl. for installation as mechanical protection
in accordance with Articles 320 and 324 of the National Electrical Code.
The basic standard used to investigate products in this category isUL3,
‘‘Flexible Nonmetallic Tubing’’.
The Listing Mark of Underwriters Laboratories Inc. on the product is the
only method provided by UL to identify products manufactured under its
Listing and Follow-Up Service. The Listing Mark for these products
includes the UL symbol (as illustrated in the Introduction of this Directory)
together with the word "LISTED," a control number, and the product
name "Nonmetallic Flexible Tubing".[/quote]
