Dịka ọmụmaatụ, Ole nọchitere anya NOAA na ndị nnọchi anya US na nzukọ UNESCO na Heritage Underwater, Okwu Heritage, Nzukọ 1st World Congress on Maritime Heritage na Intergovernmental Oceanographic Committee banyere Ọchịchị nke nnukwu gburugburu ebe obibi mmiri. N'afọ 1990, ọ rụrụ ọrụ na-eduga na mkparịta ụka ọtụtụ akụkụ nke International Agreement on Titanic, mmejuputa ntuziaka, na iwu. Ole bụkwa onye isi ọka iwu n'ịmepụta ọtụtụ mpaghara echedoro mmiri nke na-echebe ihe nketa okike na omenala, gụnyere Florida Keys, Stellwagen Bank, na Thunder Bay National Marine Sanctuaries gụnyere ọtụtụ ikpe na-agbachitere ngwa ngwa nke iwu gburugburu / ihe nketa megide ihe ịma aka n'okpuru iwu. nke nzọpụta.
Ole dị ka onye isi onye ọka iwu NOAA na ịgba akwụkwọ metụtara USS Monitor, na ụgbọ mmiri kpuru na Florida Keys na Channel Islands National Marine Sanctuaries. Ole nwere ọtụtụ akwụkwọ iwu gbasara ichekwa ihe nketa ọdịnala na okike anyị. Dịka ọmụmaatụ, Ọmụmụ Iwu Ọdịbendị Ọdịbendị Ọdịbendị ya dị na webụsaịtị UNESCO wee jiri ya mee ihe nrụtụ aka n'ime gọọmentị na agụmakwụkwọ. Nchịkọta nke ọmụmụ ihe ahụ, “Mmechi oghere na nchekwa nke ihe nketa ọdịnala dị n'okpuru mmiri na shelf kọntinent dị n'èzí” ka ebipụtara na Vol. 33:2 nke Stanford Environmental Law Journal 251 (March 2014). Ya na ọkachamara gbasara iwu Prof. Mariano Aznar-Gómez, Ole bipụtara "The Titanic dị ka Underwater Cultural Heritage: Challenges to its Legal International Protection," na Vol 44 nke Ocean Development & International Law 96-112; Ole dere isiakwụkwọ na iwu US na UCH na nyocha iwu ntụnyere nke onye ọkachamara n'iwu jikọtara ọnụ, Dr. Sarah Dromgoole nke isiokwu ya bụ: Nchedo nke Ọdịbendị Ọdịbendị n'okpuru mmiri: Echiche mba na Light of the UNESCO Convention 2001(Martinus Nijhoff, 2006) . Ole nyere aka na mbipụta UNESCO: Underwater Cultural Heritage in Risk na edemede na RMS Titanic NESCO/ICOMOS, 2006).
Ole bụkwa onye na-ede akwụkwọ na onye bụbu Onyeikpe Sherry Hutt, na onye ọka iwu Caroline Blanco na Akwụkwọ: Iwu akụrụngwa Heritage: Chebe Archaeological and Cultural Environment (Wiley, 1999). Maka akụkọ ndị ọzọ gbasara omenala, eke na ihe nketa ụwa hụ ndepụta mbipụta dị na https://www.gc.noaa.gov/gcil_varmer_bio.html. Ole bụ onye ọka iwu na-edu ndú n'ịzụlite ngalaba iwu na NOAA Risk Assessment for Potentially Polluting Wrecks in US Waters, akụkọ nye USCG (May, 2013). Ugbu a ọ bụ onye isi oche na The Ocean Foundation na-enyere aka na ntinye nke UCH n'ime ọrụ na ozi nke òtù ahụ anaghị akwụ ụgwọ.