diff --git a/src/tasks/sep/035-uni-sep-fusaka-prestate/.env b/src/tasks/sep/035-uni-sep-fusaka-prestate/.env
new file mode 100644
index 0000000000..adf17d369c
--- /dev/null
+++ b/src/tasks/sep/035-uni-sep-fusaka-prestate/.env
@@ -0,0 +1 @@
+TENDERLY_GAS=15000000
diff --git a/src/tasks/sep/035-uni-sep-fusaka-prestate/README.md b/src/tasks/sep/035-uni-sep-fusaka-prestate/README.md
new file mode 100644
index 0000000000..04b86dc2f4
--- /dev/null
+++ b/src/tasks/sep/035-uni-sep-fusaka-prestate/README.md
@@ -0,0 +1,21 @@
+# 035-uni-sep-fusaka-prestate
+
+Status: [READY TO SIGN]
+
+## Objective
+
+This task uses `op-contract/v4.1.0` OPContractsManager to update the prestate of Unichain Sepolia to the Fusaka compatible prestate.
+
+## Simulation & Signing
+
+Simulation commands for each safe:
+```bash
+cd src/tasks/sep/035-uni-sep-fusaka-prestate
+SIMULATE_WITHOUT_LEDGER=1 SKIP_DECODE_AND_PRINT=1 just --dotenv-path $(pwd)/.env simulate
+```
+
+Signing commands for each safe:
+```bash
+cd src/tasks/sep/035-uni-sep-fusaka-prestate
+SKIP_DECODE_AND_PRINT=1 just --dotenv-path $(pwd)/.env sign
+```
diff --git a/src/tasks/sep/035-uni-sep-fusaka-prestate/VALIDATION.md b/src/tasks/sep/035-uni-sep-fusaka-prestate/VALIDATION.md
new file mode 100644
index 0000000000..e441c0a29b
--- /dev/null
+++ b/src/tasks/sep/035-uni-sep-fusaka-prestate/VALIDATION.md
@@ -0,0 +1,36 @@
+# Validation
+
+This document can be used to validate the inputs and result of the execution of the upgrade transaction which you are
+signing.
+
+The steps are:
+
+1. [Validate the Domain and Message Hashes](#expected-domain-and-message-hashes)
+2. [Verifying the transaction input](#understanding-task-calldata)
+3. [Verifying the state changes](#task-state-changes)
+
+## Expected Domain and Message Hashes
+
+First, we need to validate the domain and message hashes. These values should match both the values on your ledger and
+the values printed to the terminal when you run the task.
+
+> [!CAUTION]
+>
+> Before signing, ensure the below hashes match what is on your ledger.
+>
+> ### L1PAO: `@0xd363339eE47775888Df411A163c586a8BdEA9dbf`
+>
+> - Domain Hash: `0x2fedecce87979400ff00d5cec4c77da942d43ab3b9db4a5ffc51bb2ef498f30b`
+> - Message Hash: `0x9151c19e2511e6ddf5366deaf4592fd30dd41e0f7d3e371ed85190008ca6e566`
+## Normalized State Diff Hash Attestation
+
+Ensure that the normalized state diff hash matches the output in your terminal.
+
+**Normalized hash:** `0x72702882bcde0413668da3fabcb6450df3c993b1892b9d881fa750e7cb9c5b52`
+
+## Task Calldata
+
+Calldata:
+```
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
+```
\ No newline at end of file
diff --git a/src/tasks/sep/035-uni-sep-fusaka-prestate/config.toml b/src/tasks/sep/035-uni-sep-fusaka-prestate/config.toml
new file mode 100644
index 0000000000..fbbe6ffe00
--- /dev/null
+++ b/src/tasks/sep/035-uni-sep-fusaka-prestate/config.toml
@@ -0,0 +1,19 @@
+templateName = "OPCMUpdatePrestateV410"
+
+[[l2chains]]
+chainId = 1301
+name = "Unichain Sepolia Testnet"
+
+[[opcmUpgrades]]
+chainId = 1301
+absolutePrestate = "0x0339db503776757491b9f3038bf6f1d37b7988a2f75e823fe2656c1352ef2f91" # Fusaka Absolute Prestate published here https://github.com/ethereum-optimism/superchain-registry/blob/df5d4feb51f5d698d043a72ac2c6dfa9ce2a4afa/validation/standard/standard-prestates.toml#L6C7-L6C73
+expectedValidationErrors = "OVERRIDES-L1PAOMULTISIG,OVERRIDES-CHALLENGER"  # The template provides PAO and Challenger overrides to the validator from the SCR. These simply indicate overrides were used.
+
+[addresses]
+OPCM = "0x3bb6437aba031afbf9cb3538fa064161e2bf2d78" # version 3.2.0 https://github.com/ethereum-optimism/superchain-registry/blob/df5d4feb51f5d698d043a72ac2c6dfa9ce2a4afa/validation/standard/standard-versions-sepolia.toml#L23
+
+[stateOverrides]
+# Unichain Sepolia ProxyAdminOwner:
+0xd363339eE47775888Df411A163c586a8BdEA9dbf = [ # L1PAO
+     {key = "0x0000000000000000000000000000000000000000000000000000000000000005", value = 38}
+]