diff --git a/src/Makefile.am b/src/Makefile.am
index b813c42bd08e67033975b44080f5849715cbdf45..008433110350ad52dc785d761baa87085705092f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -208,6 +208,7 @@ nobase_noinst_HEADERS = align.h approx_math.h atomic.h barrier.h cycle.h error.h
 	         riemann/riemann_hllc.h riemann/riemann_trrs.h \
 		 riemann/riemann_exact.h riemann/riemann_vacuum.h \
                  riemann/riemann_checks.h \
+		 rt.h rt/none/rt.h rt/debug/rt.h rt/M1closure/rt.h \
 	 	 stars.h stars_io.h \
 		 stars/Default/stars.h stars/Default/stars_iact.h stars/Default/stars_io.h \
      stars/Default/stars_debug.h stars/Default/stars_part.h stars/Default/stars_logger.h  \
diff --git a/src/rt.h b/src/rt.h
new file mode 100644
index 0000000000000000000000000000000000000000..f318542f75ce5e4795947cb2ef5f360694b42130
--- /dev/null
+++ b/src/rt.h
@@ -0,0 +1,41 @@
+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2020 Mladen Ivkovic (mladen.ivkovic@hotmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+#ifndef SWIFT_RT_H
+#define SWIFT_RT_H
+
+/**
+ * @file src/rt.h
+ * @brief Branches between the different radiative transfer schemes.
+ */
+
+/* Config parameters. */
+#include "../config.h"
+
+/* Import the right cooling definition */
+#if defined(RT_NONE)
+#include "./rt/none/rt.h"
+#elif defined(RT_DEBUG)
+#include "./rt/debug/rt.h"
+#elif defined(RT_M1)
+#include "./rt/M1closure/rt.h"
+#else
+#error "Invalid choice of radiation scheme"
+#endif
+
+#endif /* SWIFT_RT_H */
diff --git a/src/rt/M1closure/rt.h b/src/rt/M1closure/rt.h
new file mode 100644
index 0000000000000000000000000000000000000000..5a9f2e3e8d890bbf693f4a4fc321b51a3acf6e24
--- /dev/null
+++ b/src/rt/M1closure/rt.h
@@ -0,0 +1,32 @@
+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2020 Mladen Ivkovic (mladen.ivkovic@hotmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+#ifndef SWIFT_RT_M1_H
+#define SWIFT_RT_M1_H
+
+/**
+ * @file src/rt/M1closure/rt.h
+ * @brief Main header file for the M1 Closure radiative transfer scheme.
+ */
+
+/**
+ * @brief Dummy function to test whether inclusions work properly.
+ */
+void rt_dummy_function(void) { message("Called M1 closure RT scheme."); }
+
+#endif /* SWIFT_RT_M1_H */
diff --git a/src/rt/debug/rt.h b/src/rt/debug/rt.h
new file mode 100644
index 0000000000000000000000000000000000000000..230bc458adb3a200dc41afca493d39af216bc878
--- /dev/null
+++ b/src/rt/debug/rt.h
@@ -0,0 +1,32 @@
+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2020 Mladen Ivkovic (mladen.ivkovic@hotmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+#ifndef SWIFT_RT_DEBUG_H
+#define SWIFT_RT_DEBUG_H
+
+/**
+ * @file src/rt/debug/rt.h
+ * @brief Main header file for the debug radiative transfer scheme.
+ */
+
+/**
+ * @brief Dummy function to test whether inclusions work properly.
+ */
+void rt_dummy_function(void) { message("Called debug RT scheme."); }
+
+#endif /* SWIFT_RT_DEBUG_H */
diff --git a/src/rt/none/rt.h b/src/rt/none/rt.h
new file mode 100644
index 0000000000000000000000000000000000000000..f35052adb1d7b2538990c536f3febb1020f31206
--- /dev/null
+++ b/src/rt/none/rt.h
@@ -0,0 +1,32 @@
+/*******************************************************************************
+ * This file is part of SWIFT.
+ * Copyright (c) 2020 Mladen Ivkovic (mladen.ivkovic@hotmail.com)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ ******************************************************************************/
+#ifndef SWIFT_RT_NONE_H
+#define SWIFT_RT_NONE_H
+
+/**
+ * @file src/rt/debug/rt.h
+ * @brief Main header file for no radiative transfer scheme.
+ */
+
+/**
+ * @brief Dummy function to test whether inclusions work properly.
+ */
+void rt_dummy_function(void) { message("Called no RT scheme."); }
+
+#endif /* SWIFT_RT_NONE_H */
diff --git a/src/swift.h b/src/swift.h
index ad16acf3758abfe783a7bf986e15691f1c9096c6..4237bfab323813a06994c1ae2e5e025d8da7d22c 100644
--- a/src/swift.h
+++ b/src/swift.h
@@ -75,6 +75,7 @@
 #include "queue.h"
 #include "random.h"
 #include "restart.h"
+#include "rt.h"
 #include "runner.h"
 #include "scheduler.h"
 #include "serial_io.h"