diff --git a/nnpdf_data/nnpdf_data/theory_cards/40003017.yaml b/nnpdf_data/nnpdf_data/theory_cards/40003017.yaml
new file mode 100644
index 0000000000..10b5f85bae
--- /dev/null
+++ b/nnpdf_data/nnpdf_data/theory_cards/40003017.yaml
@@ -0,0 +1,48 @@
+ID: 40_003_017
+Comments: NNPDF4.0 N3LO alphas=0.118 and FHMRUVV splittings as Oct '24, XIR 0.5 but DIS from 40_003_000
+CKM:
+- 0.97428
+- 0.2253
+- 0.00347
+- 0.2252
+- 0.97345
+- 0.041
+- 0.00862
+- 0.0403
+- 0.999152
+DAMP: 0
+FNS: FONLL-E
+GF: 1.1663787e-05
+HQ: POLE
+IC: 1
+MP: 0.938
+MW: 80.398
+MZ: 91.1876
+MaxNfPdf: 5
+ModEv: TRN
+ModSV: None
+NfFF: 4
+PTO: 3
+Q0: 1.65
+QED: 0
+Qmb: 4.92
+Qmc: 1.51
+Qmt: 172.5
+Qref: 91.2
+SIN2TW: 0.23126
+TMC: 1
+XIF: 1.0
+XIR: 0.5
+alphaqed: 0.007496252
+alphas: 0.118
+kbThr: 1.0
+kcThr: 1.0
+ktThr: 1.0
+mb: 4.92
+mc: 1.51
+mt: 172.5
+nfref: 5
+nf0: 4
+n3lo_ad_variation: [0,0,0,0,0,0,0]
+n3lo_cf_variation: 0
+use_fhmruvv: true
diff --git a/nnpdf_data/nnpdf_data/theory_cards/40003018.yaml b/nnpdf_data/nnpdf_data/theory_cards/40003018.yaml
new file mode 100644
index 0000000000..908c35e5ed
--- /dev/null
+++ b/nnpdf_data/nnpdf_data/theory_cards/40003018.yaml
@@ -0,0 +1,48 @@
+ID: 40_003_018
+Comments: NNPDF4.0 N3LO alphas=0.118 and FHMRUVV splittings as Oct '24, XIR 2.0 but DIS from 40_003_000
+CKM:
+- 0.97428
+- 0.2253
+- 0.00347
+- 0.2252
+- 0.97345
+- 0.041
+- 0.00862
+- 0.0403
+- 0.999152
+DAMP: 0
+FNS: FONLL-E
+GF: 1.1663787e-05
+HQ: POLE
+IC: 1
+MP: 0.938
+MW: 80.398
+MZ: 91.1876
+MaxNfPdf: 5
+ModEv: TRN
+ModSV: None
+NfFF: 4
+PTO: 3
+Q0: 1.65
+QED: 0
+Qmb: 4.92
+Qmc: 1.51
+Qmt: 172.5
+Qref: 91.2
+SIN2TW: 0.23126
+TMC: 1
+XIR: 2.0
+XIR: 1.0
+alphaqed: 0.007496252
+alphas: 0.118
+kbThr: 1.0
+kcThr: 1.0
+ktThr: 1.0
+mb: 4.92
+mc: 1.51
+mt: 172.5
+nfref: 5
+nf0: 4
+n3lo_ad_variation: [0,0,0,0,0,0,0]
+n3lo_cf_variation: 0
+use_fhmruvv: true
diff --git a/validphys2/src/validphys/scalevariations/scalevariationtheoryids.yaml b/validphys2/src/validphys/scalevariations/scalevariationtheoryids.yaml
index 6b4daa0d68..ad1d1a8768 100644
--- a/validphys2/src/validphys/scalevariations/scalevariationtheoryids.yaml
+++ b/validphys2/src/validphys/scalevariations/scalevariationtheoryids.yaml
@@ -287,3 +287,36 @@ scale_variations_for:
       (2, 0.5): 41_100_026
       (2, 1): 41_100_027
       (2, 2): 41_100_028
+
+
+  # N3LO: MHOU + IHOU
+  - theoryid: 40_003_000
+    variations:
+      (0, 0, 0, 0, 0, 0, 0): 40_003_000 # central th
+      (1, 0, 0, 0, 0, 0, 0): 40_003_001 # anomalous dimensions variations
+      (2, 0, 0, 0, 0, 0, 0): 40_003_002
+      (0, 1, 0, 0, 0, 0, 0): 40_003_003
+      (0, 2, 0, 0, 0, 0, 0): 40_003_004
+      (0, 0, 1, 0, 0, 0, 0): 40_003_005
+      (0, 0, 2, 0, 0, 0, 0): 40_003_006
+      (0, 0, 0, 1, 0, 0, 0): 40_003_007
+      (0, 0, 0, 2, 0, 0, 0): 40_003_008
+      (0, 0, 0, 0, 1, 0, 0): 40_003_009
+      (0, 0, 0, 0, 2, 0, 0): 40_003_010
+      (0, 0, 0, 0, 0, 1, 0): 40_003_011
+      (0, 0, 0, 0, 0, 2, 0): 40_003_012
+      (0, 0, 0, 0, 0, 0, 1): 40_003_013
+      (0, 0, 0, 0, 0, 0, 2): 40_003_014
+      # (0.5, 1): 1015 # scale variations
+      # (2, 1): 1016
+      # (0.5, 0.5): 1017
+      # (1, 0.5): 1018
+      # (2, 0.5): 1019
+      # (0.5, 2): 1020
+      # (1, 2): 1021
+      # (2, 2): 1022
+      (-1, -1): 40_003_015 # DIS coeff functions fact variations
+      (1, 1): 40_003_016
+      # IHOU + MHOU missing prescription
+      (1, 0.5 hadronic): 40_003_017 # XIR 0.5 but DIS from 40_003_000
+      (1, 2 hadronic): 40_003_018 # XIR 2.0 but DIS from 40_003_000
\ No newline at end of file