We update our September 2018 article on the requirement to file Declarations of Actual and Effective Use under the amendments to the Mexican Industrial Property law. At that time, it was unclear whether the requirement would apply (i) only to registrations granted as of August 10, 2018, or (ii) to marks for which the third anniversary of registration fell after August 10, 2018 (i.e., registrations that issued after August 10, 2015). We have since obtained confirmation that the requirement applies only to registrations granted as of August 10, 2018.