Internet Provider Security (IPS) tags are used by domain registrar to administer a domain name registration service and related Domain Name System (DNS) services. An IPS tag is the label that applies to each registrar that registers domains in the country-code top level domain "uk" and is required to transfer domain names from one registrar to another.
IPS tags can break domain registration.
( z1 possible :ARG1 ( z2 break :ARG0 ( z3 tag :mod ( z4 product :name ( z5 name :op "IPS" ) ) ) :ARG1 ( z6 register :ARG1 ( z7 domain ) ) ) )