Oily Waste Water (OWW) Barge Services for USS RALPH JOHNSON in Yokosuka, Japan. This solicitation is intended only for sources duly authorized to operate and do business in Japan, as prescribed by DFA... Oily Waste Water (OWW) Barge Services for USS RALPH JOHNSON in Yokosuka, Japan. This solicitation is intended only for sources duly authorized to operate and do business in Japan, as prescribed by DFARS 252.225-7042. Prime Contractors outside of Japan must submit documentation that unambiguously demonstrates the Quoter's compliance with DFARS 252.225-7042 (e.g. proof of incorporation) as part of their quotation.