diff --git a/ptbposter/ptbposter-2018.clo b/ptbposter/ptbposter-2018.clo
new file mode 100644
index 0000000000000000000000000000000000000000..0ddbaf8e84358503346a2ad83b7f0789a001b0db
--- /dev/null
+++ b/ptbposter/ptbposter-2018.clo
@@ -0,0 +1,129 @@
+% Rolf Niepraschk, Rolf.Niepraschk@ptb.de
+
+\ProvidesFile{ptbposter-2018.clo}%
+  [2020/03/05 v0.1a `PTB-Poster' layout 2018 (RN/PTB)]
+  
+\typeout{*** LAYOUT 2018 ***}
+
+\AddToShipoutPictureBG*{% Kopf (relativ zur oberen Blattkante)
+  \PTB@tempdima=-0.077\PTB@scale@base
+  \put(\PTB@leftmargin,\PTB@tempdima){%
+    \parbox[b]{\PTB@framewidth}{% TODO: vereinfachen?
+      \parbox[b]{.401\PTB@scale@base}{%
+        \textcolor{PTBcolor}{% TODO: Tikz-Grafik erzeugen (autom.?) und verwenden
+          \includegraphics[height=.055\PTB@scale@base]{ptbposter-logo-A.mps}
+        }%    1,58365758755
+        \ifPTB@logo@long@
+        \hfill
+        \raisebox{.0025\PTB@scale@base}{% 
+          %\includegraphics[width=.612\linewidth]{ptbposter-logo-B.mps}%
+          \resizebox{.61\linewidth}{!}{%
+            \hspace{-.2ex}% 
+            \begin{varwidth}[b]{\linewidth}%
+              \PTBdesignFont\bfseries
+              Physikalisch-Technische Bundesanstalt\\
+              Braunschweig und Berlin\\
+              \mdseries
+              Nationales Metrologieinstitut
+            \end{varwidth}%
+          }%
+        }%
+        \fi
+      }%
+      \hfill
+      \ifx\PTB@logo\@empty\else
+        \includegraphics[height=.055\PTB@scale@base]{\PTB@logo}%
+      \fi
+    }
+  }%
+  \def\PTB@tempa{\parbox[c]{\PTB@framewidth}{% Komplette Titeldefinition
+    \PTB@title@justification\PTB@title@series\sffamily\titleFontSize
+    \microtypesetup{protrusion=false}\@title}}%
+  \begingroup
+  \@tempcnta=\@ne \@tempcntb=10499 %
+  \loop\ifnum\@tempcnta<25 % Finden der ersten passenden titleFontSize
+    \multiply\@tempcntb 10000 \divide\@tempcntb by 10500 % jeweils um 5% kleiner
+    \PTB@scaleTitleFontSize{0.\the\@tempcntb}% 1:0.9999, 2:0.9522, 3:0.9068, ...
+    %\typeout{\the\@tempcnta\space XXX: \titleFontSize, 0.\the\@tempcntb}%
+    \setbox\z@ \hbox{\PTB@tempa}%
+    \ifdim\dimexpr\ht\z@+\dp\z@>\PTB@maxtitleheight
+      \advance\@tempcnta\@ne % weiter, wenn zu gross
+    \else
+      \@tempcnta=999 % Abbruch
+    \fi
+  \repeat
+  \endgroup
+  \PTB@tempdima=-0.127\PTB@scale@base
+  \put(\PTB@leftmargin,\PTB@tempdima){\PTB@tempa}% Title
+  \PTB@tempdima=-0.172\PTB@scale@base
+  \def\and{, }%
+  \put(\PTB@leftmargin,\PTB@tempdima){\parbox[b]{\PTB@framewidth}{% Autoren
+    \PTB@authors@justification\sffamily\authorFontSize\@author}}%
+  % hier wird \@thanks gefüllt
+  \linethickness{\PTB@framethickness}\color{PTBcolor}%\color{PTBcolor}%
+  \PTB@tempdima=-0.0883095039717\PTB@scale@base
+  \put(\PTB@leftmargin,\PTB@tempdima){%
+    \line(1,0){\dimexpr\paperwidth-2\PTB@leftmargin}}%
+  % blauer Rahmen
+  \put(\PTB@leftmargin,\dimexpr-\textheight-2\PTB@textvsep-\PTB@topmargin)%
+    {\framebox(\dimexpr\textwidth+2\PTB@texthsep,%
+     \dimexpr\textheight+2\PTB@textvsep){\backgroundContent}}%
+}
+
+\AddToShipoutPictureFG*{% Fuß (relativ zur unteren Kante des Textbereichs)
+  \AtTextLowerLeft{%
+    \put(-\PTB@texthsep,-\PTB@textvsep){%
+      \PTB@tempdimb=0.000420521447484\PTB@scale@base
+      \linethickness{\PTB@tempdimb}\normalcolor
+      \PTB@tempdima=-0.0420521447484\PTB@scale@base
+      \put(-.5\@wholewidth,\PTB@tempdima){%
+        \PTB@tempdima=0.0386879731686\PTB@scale@base
+        \PTB@tempdimb=0.00168208578994\PTB@scale@base
+        \ifx\PTB@qrcode\@empty
+          \color{PTBcolor}\framebox(\PTB@tempdima,\PTB@tempdima){}%
+        \else
+          \sbox\@tempboxa{\qrcode[height=\PTB@tempdima,tight]{\PTB@qrcode}}%
+          \raisebox{\dp\@tempboxa}{\usebox\@tempboxa}%
+        \fi
+        \color{PTBcolor}
+        \hspace{\PTB@tempdimb}\raisebox{-\@wholewidth}{%
+          \rule{\dimexpr\PTB@tempdima+2\@wholewidth}%
+            {\dimexpr\PTB@tempdima+2\@wholewidth}}%
+        \hspace{\PTB@tempdimb}\framebox(\PTB@tempdima,\PTB@tempdima){}%
+      }
+      \PTB@tempdimb=-0.00841042894969\PTB@scale@base
+      \footFontSize\sffamily\normalcolor
+      \PTB@tempdima=0.122792262665\PTB@scale@base
+      \put(\PTB@tempdima,\PTB@tempdimb){%
+        \begin{tabular}[t]{@{}l@{}}
+          Physikalisch-Technische Bundesanstalt \\
+          Braunschweig und Berlin \\[\f@baselineskip]
+          \ifx\first@author\@empty\else \textbf{\first@author}\\\fi
+          \ifx\PTB@department\@empty\else \PTB@department\\\fi
+          \ifx\PTB@workingGroup\@empty\else \PTB@workingGroup\\\fi
+        \end{tabular}%
+      }
+      \PTB@tempdima=0.263246426125\PTB@scale@base
+      \put(\PTB@tempdima,\PTB@tempdimb){%
+        \begin{tabular}[t]{@{}ll@{}}
+          \ifx\PTB@street\@empty\else\multicolumn{2}{@{}l@{}}{\PTB@street}\\\fi
+          \ifx\PTB@location\@empty\else\multicolumn{2}{@{}l@{}}{\PTB@location}\\\fi
+          \ifx\PTB@phone\@empty\else\ifPTB@german@ Telefon\else Phone\fi:
+            &\PTB@phone\\\fi
+          \ifx\PTB@fax\@empty\else Fax:&\PTB@fax\\\fi
+          \ifx\PTB@email\@empty\else\ifPTB@german@ E-Mail\else E-mail\fi:
+            &\href{mailto:\PTB@email}{\PTB@email}\\\fi
+          \multicolumn{2}{@{}l@{}}{\href{http://www.ptb.de/}{www.ptb.de}}
+        \end{tabular}%
+      }
+      \PTB@tempdima=0.378469302736\PTB@scale@base
+      \put(\PTB@tempdima,\PTB@tempdimb){%
+        \begin{tabular}[t]{@{}l@{}}
+          \@thanks % wurde bei der Ausführung von \@author gefüllt.
+        \end{tabular}%
+      }
+    }
+  }
+}
+
+\endinput
diff --git a/ptbposter/ptbposter-2020.clo b/ptbposter/ptbposter-2020.clo
new file mode 100644
index 0000000000000000000000000000000000000000..f7b50bc944b9b324ea72eb7962592efb24e411bf
--- /dev/null
+++ b/ptbposter/ptbposter-2020.clo
@@ -0,0 +1,129 @@
+% Rolf Niepraschk, Rolf.Niepraschk@ptb.de
+
+\ProvidesFile{ptbposter-2020.clo}%
+  [2020/03/05 v0.1a `PTB-Poster' layout 2020 (RN/PTB)]
+
+\typeout{*** LAYOUT 2020 ***}
+
+\AddToShipoutPictureBG*{% Kopf (relativ zur oberen Blattkante)
+  \PTB@tempdima=-0.077\PTB@scale@base
+  \put(\PTB@leftmargin,\PTB@tempdima){%
+    \parbox[b]{\PTB@framewidth}{% TODO: vereinfachen?
+      \parbox[b]{.401\PTB@scale@base}{%
+        \textcolor{PTBcolor}{% TODO: Tikz-Grafik erzeugen (autom.?) und verwenden
+          \includegraphics[height=.055\PTB@scale@base]{ptbposter-logo-A.mps}
+        }%    1,58365758755
+        \ifPTB@logo@long@
+        \hfill
+        \raisebox{.0025\PTB@scale@base}{% 
+          %\includegraphics[width=.612\linewidth]{ptbposter-logo-B.mps}%
+          \resizebox{.61\linewidth}{!}{%
+            \hspace{-.2ex}% 
+            \begin{varwidth}[b]{\linewidth}%
+              \PTBdesignFont\bfseries
+              Physikalisch-Technische Bundesanstalt\\
+              Braunschweig und Berlin\\
+              \mdseries
+              Nationales Metrologieinstitut
+            \end{varwidth}%
+          }%
+        }%
+        \fi
+      }%
+      \hfill
+      \ifx\PTB@logo\@empty\else
+        \includegraphics[height=.055\PTB@scale@base]{\PTB@logo}%
+      \fi
+    }
+  }%
+  \def\PTB@tempa{\parbox[c]{\PTB@framewidth}{% Komplette Titeldefinition
+    \PTB@title@justification\PTB@title@series\sffamily\titleFontSize
+    \microtypesetup{protrusion=false}\@title}}%
+  \begingroup
+  \@tempcnta=\@ne \@tempcntb=10499 %
+  \loop\ifnum\@tempcnta<25 % Finden der ersten passenden titleFontSize
+    \multiply\@tempcntb 10000 \divide\@tempcntb by 10500 % jeweils um 5% kleiner
+    \PTB@scaleTitleFontSize{0.\the\@tempcntb}% 1:0.9999, 2:0.9522, 3:0.9068, ...
+    %\typeout{\the\@tempcnta\space XXX: \titleFontSize, 0.\the\@tempcntb}%
+    \setbox\z@ \hbox{\PTB@tempa}%
+    \ifdim\dimexpr\ht\z@+\dp\z@>\PTB@maxtitleheight
+      \advance\@tempcnta\@ne % weiter, wenn zu gross
+    \else
+      \@tempcnta=999 % Abbruch
+    \fi
+  \repeat
+  \endgroup
+  \PTB@tempdima=-0.127\PTB@scale@base
+  \put(\PTB@leftmargin,\PTB@tempdima){\PTB@tempa}% Title
+  \PTB@tempdima=-0.172\PTB@scale@base
+  \def\and{, }%
+  \put(\PTB@leftmargin,\PTB@tempdima){\parbox[b]{\PTB@framewidth}{% Autoren
+    \PTB@authors@justification\sffamily\authorFontSize\@author}}%
+  % hier wird \@thanks gefüllt
+  \linethickness{\PTB@framethickness}\color{PTBcolor}%\color{PTBcolor}%
+  \PTB@tempdima=-0.0883095039717\PTB@scale@base
+  \put(\PTB@leftmargin,\PTB@tempdima){%
+    \line(1,0){\dimexpr\paperwidth-2\PTB@leftmargin}}%
+  % blauer Rahmen
+  \put(\PTB@leftmargin,\dimexpr-\textheight-2\PTB@textvsep-\PTB@topmargin)%
+    {\framebox(\dimexpr\textwidth+2\PTB@texthsep,%
+     \dimexpr\textheight+2\PTB@textvsep){\backgroundContent}}%
+}
+
+\AddToShipoutPictureFG*{% Fuß (relativ zur unteren Kante des Textbereichs)
+  \AtTextLowerLeft{%
+    \put(-\PTB@texthsep,-\PTB@textvsep){%
+      \PTB@tempdimb=0.000420521447484\PTB@scale@base
+      \linethickness{\PTB@tempdimb}\normalcolor
+      \PTB@tempdima=-0.0420521447484\PTB@scale@base
+      \put(-.5\@wholewidth,\PTB@tempdima){%
+        \PTB@tempdima=0.0386879731686\PTB@scale@base
+        \PTB@tempdimb=0.00168208578994\PTB@scale@base
+        \ifx\PTB@qrcode\@empty
+          \color{PTBcolor}\framebox(\PTB@tempdima,\PTB@tempdima){}%
+        \else
+          \sbox\@tempboxa{\qrcode[height=\PTB@tempdima,tight]{\PTB@qrcode}}%
+          \raisebox{\dp\@tempboxa}{\usebox\@tempboxa}%
+        \fi
+        \color{PTBcolor}
+        \hspace{\PTB@tempdimb}\raisebox{-\@wholewidth}{%
+          \rule{\dimexpr\PTB@tempdima+2\@wholewidth}%
+            {\dimexpr\PTB@tempdima+2\@wholewidth}}%
+        \hspace{\PTB@tempdimb}\framebox(\PTB@tempdima,\PTB@tempdima){}%
+      }
+      \PTB@tempdimb=-0.00841042894969\PTB@scale@base
+      \footFontSize\sffamily\normalcolor
+      \PTB@tempdima=0.122792262665\PTB@scale@base
+      \put(\PTB@tempdima,\PTB@tempdimb){%
+        \begin{tabular}[t]{@{}l@{}}
+          Physikalisch-Technische Bundesanstalt \\
+          Braunschweig und Berlin \\[\f@baselineskip]
+          \ifx\first@author\@empty\else \textbf{\first@author}\\\fi
+          \ifx\PTB@department\@empty\else \PTB@department\\\fi
+          \ifx\PTB@workingGroup\@empty\else \PTB@workingGroup\\\fi
+        \end{tabular}%
+      }
+      \PTB@tempdima=0.263246426125\PTB@scale@base
+      \put(\PTB@tempdima,\PTB@tempdimb){%
+        \begin{tabular}[t]{@{}ll@{}}
+          \ifx\PTB@street\@empty\else\multicolumn{2}{@{}l@{}}{\PTB@street}\\\fi
+          \ifx\PTB@location\@empty\else\multicolumn{2}{@{}l@{}}{\PTB@location}\\\fi
+          \ifx\PTB@phone\@empty\else\ifPTB@german@ Telefon\else Phone\fi:
+            &\PTB@phone\\\fi
+          \ifx\PTB@fax\@empty\else Fax:&\PTB@fax\\\fi
+          \ifx\PTB@email\@empty\else\ifPTB@german@ E-Mail\else E-mail\fi:
+            &\href{mailto:\PTB@email}{\PTB@email}\\\fi
+          \multicolumn{2}{@{}l@{}}{\href{http://www.ptb.de/}{www.ptb.de}}
+        \end{tabular}%
+      }
+      \PTB@tempdima=0.378469302736\PTB@scale@base
+      \put(\PTB@tempdima,\PTB@tempdimb){%
+        \begin{tabular}[t]{@{}l@{}}
+          \@thanks % wurde bei der Ausführung von \@author gefüllt.
+        \end{tabular}%
+      }
+    }
+  }
+}
+
+\endinput
diff --git a/ptbposter/ptbposter-tcb.sty b/ptbposter/ptbposter-tcb.sty
index 17426afb3a7f02ad8971388bbd13a0c380d3f048..139def0b453cfba5ba3a49792183d10a18155241 100644
--- a/ptbposter/ptbposter-tcb.sty
+++ b/ptbposter/ptbposter-tcb.sty
@@ -17,15 +17,17 @@
 
 \ProcessKeyvalOptions*\relax
 
-\newcommand*\PTB@boxesSet{}
+\newcommand*\PTB@boxesSet{} 
+
+\newcommand*\ARC{0.005\PTB@scale@base}
 
 \ifcase \PTB@boxlayout
     % 0
-  \g@addto@macro\PTB@boxesSet{enhanced jigsaw,sharp corners=downhill,arc=.8ex}
+  \g@addto@macro\PTB@boxesSet{enhanced jigsaw,sharp corners=downhill,arc=\ARC}
 \or % 1
-  \g@addto@macro\PTB@boxesSet{enhanced jigsaw,sharp corners=uphill,arc=.8ex}
+  \g@addto@macro\PTB@boxesSet{enhanced jigsaw,sharp corners=uphill,arc=\ARC}
 \or % 2
-  \g@addto@macro\PTB@boxesSet{enhanced jigsaw,arc=.8ex}
+  \g@addto@macro\PTB@boxesSet{enhanced jigsaw,arc=\ARC}
 \or % 3
   \g@addto@macro\PTB@boxesSet{arc=0pt}
 \fi
@@ -57,8 +59,7 @@
 }% 
 
 \g@addto@macro\PTB@boxesSet{
-  arc=0.012\PTB@scale@base,
-  boxrule=\PTB@framethickness,
+  ,boxrule=\PTB@framethickness,
   boxsep=0pt,
   top=1ex,bottom=1ex,left=1ex,right=1ex,
   toptitle=.6ex,bottomtitle=.6ex,lefttitle=1ex,righttitle=1ex,
@@ -76,7 +77,7 @@
   adjusted title/.style={title={\raisebox{0pt}[\height][0pt]{#1}}}
 }
 
-\AtBeginDocument{%
+\AtBeginDocument{%   
   \protected@edef\PTB@tempa{\noexpand\tcbposterset{poster={\PTB@posterSet},%
     boxes={\PTB@boxesSet}}}%
   \PTB@tempa
diff --git a/ptbposter/ptbposter.cls b/ptbposter/ptbposter.cls
index a297536c16702872ef9765cf93b71c5cbb1edeba..742362211f578ee4fddacde159ca40593df80b8f 100644
--- a/ptbposter/ptbposter.cls
+++ b/ptbposter/ptbposter.cls
@@ -59,13 +59,7 @@
 \newcommand*\PTB@title@series{\relax}
 
 \newcommand*\PTB@font@base@factor{}
-
-\@namedef{version-1}{%
-  \def\PTB@font@base@factor{0.0130170299199}% 11pt bei A4
-}
-\@namedef{version-2}{%
-  \def\PTB@font@base@factor{0.0118336635635}% 10pt bei A4
-}
+\newcommand*\PTB@layout{}
 
 \DeclareOption{sanserif}{% noch experimentell! Besser: LuaTeX/XeTeX + OTF
   \SERIFfalse
@@ -106,15 +100,16 @@
 \DeclareOption{shortPTBlogo}{%
   \PTB@logo@long@false  
 }
-\DeclareOption{version-1}{%
-  \@nameuse{\CurrentOption}
-  \PassOptionsToPackage{\CurrentOption}{ptbposter-tcb}
+\DeclareOption{layout2018}{%
+  \def\PTB@font@base@factor{0.0130170299199}% 11pt bei A4
+  \def\PTB@layout{0}%
 }
-\DeclareOption{version-2}{%
-  \@nameuse{\CurrentOption}
+\DeclareOption{layout2020}{%
+  \def\PTB@font@base@factor{0.0118336635635}% 10pt bei A4
+  \def\PTB@layout{1}%
 }
 \DeclareOption*{\PassOptionsToPackage{\CurrentOption}{babel}}
-\ExecuteOptions{serif,version-2}
+\ExecuteOptions{serif,layout2020}
 \ProcessOptions\relax
 
 \RequirePackage{hyphsubst}% Trennregeln austauschen
@@ -264,126 +259,12 @@
 \RequirePackage{pict2e,picture,ifdraft,booktabs}
 \RequirePackage{varwidth,qrcode}
 
-\AddToShipoutPictureBG*{% Kopf (relativ zur oberen Blattkante)
-  \PTB@tempdima=-0.077\PTB@scale@base
-  \put(\PTB@leftmargin,\PTB@tempdima){%
-    \parbox[b]{\PTB@framewidth}{% TODO: vereinfachen?
-      \parbox[b]{.401\PTB@scale@base}{%
-        \textcolor{PTBcolor}{% TODO: Tikz-Grafik erzeugen (autom.?) und verwenden
-          \includegraphics[height=.055\PTB@scale@base]{ptbposter-logo-A.mps}
-        }%    1,58365758755
-        \ifPTB@logo@long@
-        \hfill
-        \raisebox{.0025\PTB@scale@base}{% 
-          %\includegraphics[width=.612\linewidth]{ptbposter-logo-B.mps}%
-          \resizebox{.61\linewidth}{!}{%
-            \hspace{-.2ex}% 
-            \begin{varwidth}[b]{\linewidth}%
-              \PTBdesignFont\bfseries
-              Physikalisch-Technische Bundesanstalt\\
-              Braunschweig und Berlin\\
-              \mdseries
-              Nationales Metrologieinstitut
-            \end{varwidth}%
-          }%
-        }%
-        \fi
-      }%
-      \hfill
-      \ifx\PTB@logo\@empty\else
-        \includegraphics[height=.055\PTB@scale@base]{\PTB@logo}%
-      \fi
-    }
-  }%
-  \def\PTB@tempa{\parbox[c]{\PTB@framewidth}{% Komplette Titeldefinition
-    \PTB@title@justification\PTB@title@series\sffamily\titleFontSize
-    \microtypesetup{protrusion=false}\@title}}%
-  \begingroup
-  \@tempcnta=\@ne \@tempcntb=10499 %
-  \loop\ifnum\@tempcnta<25 % Finden der ersten passenden titleFontSize
-    \multiply\@tempcntb 10000 \divide\@tempcntb by 10500 % jeweils um 5% kleiner
-    \PTB@scaleTitleFontSize{0.\the\@tempcntb}% 1:0.9999, 2:0.9522, 3:0.9068, ...
-    %\typeout{\the\@tempcnta\space XXX: \titleFontSize, 0.\the\@tempcntb}%
-    \setbox\z@ \hbox{\PTB@tempa}%
-    \ifdim\dimexpr\ht\z@+\dp\z@>\PTB@maxtitleheight
-      \advance\@tempcnta\@ne % weiter, wenn zu gross
-    \else
-      \@tempcnta=999 % Abbruch
-    \fi
-  \repeat
-  \endgroup
-  \PTB@tempdima=-0.127\PTB@scale@base
-  \put(\PTB@leftmargin,\PTB@tempdima){\PTB@tempa}% Title
-  \PTB@tempdima=-0.172\PTB@scale@base
-  \def\and{, }%
-  \put(\PTB@leftmargin,\PTB@tempdima){\parbox[b]{\PTB@framewidth}{% Autoren
-    \PTB@authors@justification\sffamily\authorFontSize\@author}}%
-  % hier wird \@thanks gefüllt
-  \linethickness{\PTB@framethickness}\color{PTBcolor}%\color{PTBcolor}%
-  \PTB@tempdima=-0.0883095039717\PTB@scale@base
-  \put(\PTB@leftmargin,\PTB@tempdima){%
-    \line(1,0){\dimexpr\paperwidth-2\PTB@leftmargin}}%
-  % blauer Rahmen
-  \put(\PTB@leftmargin,\dimexpr-\textheight-2\PTB@textvsep-\PTB@topmargin)%
-    {\framebox(\dimexpr\textwidth+2\PTB@texthsep,%
-     \dimexpr\textheight+2\PTB@textvsep){\backgroundContent}}%
-}
-
-\AddToShipoutPictureFG*{% Fuß (relativ zur unteren Kante des Textbereichs)
-  \AtTextLowerLeft{%
-    \put(-\PTB@texthsep,-\PTB@textvsep){%
-      \PTB@tempdimb=0.000420521447484\PTB@scale@base
-      \linethickness{\PTB@tempdimb}\normalcolor
-      \PTB@tempdima=-0.0420521447484\PTB@scale@base
-      \put(-.5\@wholewidth,\PTB@tempdima){%
-        \PTB@tempdima=0.0386879731686\PTB@scale@base
-        \PTB@tempdimb=0.00168208578994\PTB@scale@base
-        \ifx\PTB@qrcode\@empty
-          \color{PTBcolor}\framebox(\PTB@tempdima,\PTB@tempdima){}%
-        \else
-          \sbox\@tempboxa{\qrcode[height=\PTB@tempdima,tight]{\PTB@qrcode}}%
-          \raisebox{\dp\@tempboxa}{\usebox\@tempboxa}%
-        \fi
-        \color{PTBcolor}
-        \hspace{\PTB@tempdimb}\raisebox{-\@wholewidth}{%
-          \rule{\dimexpr\PTB@tempdima+2\@wholewidth}%
-            {\dimexpr\PTB@tempdima+2\@wholewidth}}%
-        \hspace{\PTB@tempdimb}\framebox(\PTB@tempdima,\PTB@tempdima){}%
-      }
-      \PTB@tempdimb=-0.00841042894969\PTB@scale@base
-      \footFontSize\sffamily\normalcolor
-      \PTB@tempdima=0.122792262665\PTB@scale@base
-      \put(\PTB@tempdima,\PTB@tempdimb){%
-        \begin{tabular}[t]{@{}l@{}}
-          Physikalisch-Technische Bundesanstalt \\
-          Braunschweig und Berlin \\[\f@baselineskip]
-          \ifx\first@author\@empty\else \textbf{\first@author}\\\fi
-          \ifx\PTB@department\@empty\else \PTB@department\\\fi
-          \ifx\PTB@workingGroup\@empty\else \PTB@workingGroup\\\fi
-        \end{tabular}%
-      }
-      \PTB@tempdima=0.263246426125\PTB@scale@base
-      \put(\PTB@tempdima,\PTB@tempdimb){%
-        \begin{tabular}[t]{@{}ll@{}}
-          \ifx\PTB@street\@empty\else\multicolumn{2}{@{}l@{}}{\PTB@street}\\\fi
-          \ifx\PTB@location\@empty\else\multicolumn{2}{@{}l@{}}{\PTB@location}\\\fi
-          \ifx\PTB@phone\@empty\else\ifPTB@german@ Telefon\else Phone\fi:
-            &\PTB@phone\\\fi
-          \ifx\PTB@fax\@empty\else Fax:&\PTB@fax\\\fi
-          \ifx\PTB@email\@empty\else\ifPTB@german@ E-Mail\else E-mail\fi:
-            &\href{mailto:\PTB@email}{\PTB@email}\\\fi
-          \multicolumn{2}{@{}l@{}}{\href{http://www.ptb.de/}{www.ptb.de}}
-        \end{tabular}%
-      }
-      \PTB@tempdima=0.378469302736\PTB@scale@base
-      \put(\PTB@tempdima,\PTB@tempdimb){%
-        \begin{tabular}[t]{@{}l@{}}
-          \@thanks % wurde bei der Ausführung von \@author gefüllt.
-        \end{tabular}%
-      }
-    }
-  }
-}
+\ifcase \PTB@layout
+    % 0
+  \input{ptbposter-2018.clo}
+\or % 1
+  \input{ptbposter-2020.clo}
+\fi
 
 % ===== Behandlung der Autoren (siehe ptb-abstracts.sty ) =====
 
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