the model designation is irrelevant.. you need to go by the documentation or registration. if it's 24 something, the "inspector" was wrong.... you dont' need the placard. Funny how when you give someone a clipboard he becomes an (never mind)
Bill,
an all around is ok up to 12M/39'4"... i dont' think the rules have changed, I think Mainship messed up...
"(i) A power-driven vessel of less than 12 meters in length may in lieu of the lights prescribed in paragraph (a) of this Rule exhibit an all-round white light and sidelights;"
The bell requirement is a gray area since inland and international rules are different. Under International...
"(a) A vessel of 12 meters or more in length shall be provided with a whistle, a vessel of 20 meters or more in length shall be provided with a bell in addition to a whistle,"
Inland rules, mandates a Bell over 12M, yet the USCG Aux site
http://www.safetyseal.net/what_is_vsc.asp claims that the bell requirement is no longer enforced between 12 and 20 meters...
An automatic hailer will not replace a bell, it's merely a convenience to sound the fog signal when underway.