International Convention for the Safety of Life at Sea
Also called: SOLAS, International Ice Patrol
After inquiries by the US Senate and in Britain, the first International Convention for the Safety of Life at Sea (SOLAS) was signed in London on 20 January 1914, requiring lifeboats for all, round-the-clock radio watch and a North Atlantic ice patrol.

Louis F. Grant · Public domain · Source
Five days after the sinking, on 19 April 1912, the US Senate opened hearings in New York with survivors and crew; in May the British Board of Trade inquiry followed in London. Both pointed to speed kept up despite ice warnings, too few lifeboats, and Californian nearby with her radio off.
On 20 January 1914 thirteen nations signed the first SOLAS convention in London: lifeboats and drills for everyone aboard, a 24-hour radio watch on passenger ships, and an International Ice Patrol to watch for icebergs on the North Atlantic lanes. The patrol, run by the US Coast Guard, still surveys the ice every spring.