  Scaling relations describing the electromagnetic behaviour of coated
conductors (CCs) greatly simplify the design of REBCO-based devices. The
performance of REBCO CCs is strongly influenced by fabrication route, conductor
architecture and materials, and these parameters vary from one manufacturer to
the others. In the present work we have examined the critical surface for the
current density, Jc(T,B,$\theta$), of coated conductors from six different
manufacturers: American Superconductor Co. (US), Bruker HTS GmbH (Germany),
Fujikura Ltd. (Japan), SuNAM Co. Ltd. (Korea), SuperOx ZAO (Russia) and
SuperPower Inc. (US). Electrical transport and magnetic measurements were
performed at temperatures between 4.2 K and 77 K and in magnetic field up to 19
T. Experiments were conducted at three different orientations of the field with
respect to the crystallographic c-axis of the REBCO layer, $\theta$ = 0$\deg$,
45$\deg$ and 90$\deg$, in order to probe the angular anisotropy of Jc. In spite
of the large variability of CCs performance, we show here that field and
temperature dependences of Jc at a given angle can be reproduced over wide
ranges using a scaling relation based only on three parameters. Furthermore, we
present and validate a new approach combining magnetic and transport
measurements for the determination of the scaling parameters with minimal
experimental effort.
