diff --git a/.arc/validation_packages.yml b/.arc/validation_packages.yml
new file mode 100644
index 0000000000000000000000000000000000000000..23ff85ffe3fbb0fdb280bad54fbe8ff112fc6199
--- /dev/null
+++ b/.arc/validation_packages.yml
@@ -0,0 +1,4 @@
+arc_specification: 2.0.0-draft
+validation_packages:
+  - name: plant-growth
+    version: 1.0.0
diff --git a/assays/ENA_Assay1/isa.assay.xlsx b/assays/ENA_Assay1/isa.assay.xlsx
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diff --git a/assays/Metabolights_Assay1/isa.assay.xlsx b/assays/Metabolights_Assay1/isa.assay.xlsx
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diff --git a/assays/Metabolights_Assay2/isa.assay.xlsx b/assays/Metabolights_Assay2/isa.assay.xlsx
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diff --git a/isa.investigation.xlsx b/isa.investigation.xlsx
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diff --git a/studies/ENA-Metabolights/isa.study.xlsx b/studies/ENA-Metabolights/isa.study.xlsx
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