Some regulatory guidance documents, national laws, or environmental permits published in 2018 still referenced the old EPER framework for historical comparison or transitional provisions. Thus, "EPER 2018" sometimes appears in legal texts as a reference point to earlier reporting schemes.

: Official add-ons and branded items for specific models.

A number of EU Member States updated their national pollutant release and transfer registers (PRTRs) in 2018 to align fully with E-PRTR requirements. Some of these national implementations retained the term "EPER" in local legislation or guidance documents, leading to confusion.

One of the most anticipated announcements every year is the dividend rate declared for contributors.