Many CGL policies typically include an endorsement that contains a clause providing for automatic additional insured status without a project specific schedule listing names of additional insureds. (See, for example, form CG 2033 0704, “Additional Insured-Owners, Lessees or Contractors – Automatic Status When Required in Construction Agreement With You”). By this endorsement the “Who is An Insured” provision is amended “to include as an additional insured any person or organization for whom you are performing operations when you and such person or organization have agreed in writing in a contract or agreement that such person or organization be added as an additional insured on your policy.” That can be a fail-safe mechanism when upstream contracting parties neglect to obtain necessary written endorsements naming specific parties. However, it only goes so far.