diff --git a/setup/env-variables/backend-env-variables.mdx b/setup/env-variables/backend-env-variables.mdx
index b12d64a..1dd5403 100644
--- a/setup/env-variables/backend-env-variables.mdx
+++ b/setup/env-variables/backend-env-variables.mdx
@@ -134,7 +134,7 @@ Can be set in format `1h` for 1 hour, `1m` for 1 minute, `1s` or `1` for 1 secon
| `API_SENSITIVE_ENDPOINTS_KEY` | API key to protect some sensitive endpoints. Implemented in [#7355](https://github.com/blockscout/blockscout/pull/7355) | Version: v5.1.5\+
Default: (empty)
Applications: API |
| `CHECKSUM_ADDRESS_HASHES` | If set to `true`, redirects to checksummed version of address hashes. | Version: v3.1.0\+
Default: `true`
Applications: API |
| `CHECKSUM_FUNCTION` | Defines checksum address function. 2 available values: `rsk`, `eth` | Version: v2.0.1\+
Default: `eth`
Applications: API |
-| `CHAIN_TYPE` | Specifies the blockchain architecture and enables chain-specific data models and fetchers. | Runtime configurable (v8.0.0\+): `neon`, `stability`, `blackfort`, `shibarium` Needs recompilation: `ethereum`, `optimism`, `arbitrum`, `celo`, `polygon_zkevm`, `rsk`, `suave`, `zetachain`, `filecoin`, `zilliqa`, and other values prior to v8.0.0 Version: v5.3.0\+
Default: `default`
Applications: API, Indexer |
+| `CHAIN_TYPE` | Specifies the blockchain architecture and enables chain-specific data models and fetchers. | Runtime configurable (v8.0.0\+): `neon`, `stability`, `blackfort`, `shibarium`, `arc` Needs recompilation: `ethereum`, `optimism`, `arbitrum`, `celo`, `polygon_zkevm`, `rsk`, `suave`, `zetachain`, `filecoin`, `zilliqa`, and other values prior to v8.0.0 Version: v5.3.0\+
Default: `default`
Applications: API, Indexer |
| `CHAIN_ID` | Chain ID of the network. For instance, 100 in the case of xDai chain. | Version: v3.7.0\+
Default: (empty)
Applications: API, Indexer |
| `JSON_RPC` | JSON RPC endpoint of the chain for the WalletConnect integration. Implemented in [#4931](https://github.com/blockscout/blockscout/pull/4931) | Version: v4.1.0\+
Default: (empty)
Applications: API, Indexer |
| `HEALTH_MONITOR_CHECK_INTERVAL` | Interval between health stats collection. [Time format](/setup/env-variables/backend-env-variables#time-format). Implemented in [#11888](https://github.com/blockscout/blockscout/pull/11888/) | Version: v8.0.0\+
Default: `1m`
Applications: API, Indexer |
diff --git a/setup/env-variables/backend-envs-chain-specific.mdx b/setup/env-variables/backend-envs-chain-specific.mdx
index a8b41a5..4a7e3fa 100644
--- a/setup/env-variables/backend-envs-chain-specific.mdx
+++ b/setup/env-variables/backend-envs-chain-specific.mdx
@@ -331,3 +331,16 @@ Supported together with setting `CHAIN_TYPE=blackfort`
| Variable | Description | Parameters |
| ----------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------ |
| `BLACKFORT_VALIDATOR_API_URL` | Variable to define the URL of the Blackfort Validator API. Implemented in [#10744](https://github.com/blockscout/blockscout/pull/10744). | Version: v6.9.0+
Default: (empty)
Applications: API, Indexer |
+
+## Arc Management
+
+
+Supported together with setting `CHAIN_TYPE=arc`
+
+
+
+| Variable | Description | Parameters |
+| ------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- |
+| `INDEXER_ARC_NATIVE_TOKEN_DECIMALS` | Defines the number of decimals for Arc chain native token (e.g. USDC). Implemented in [#13452](https://github.com/blockscout/blockscout/pull/13452). | Version: master
Default: `6`
Applications: Indexer |
+| `INDEXER_ARC_NATIVE_TOKEN_ADDRESS` | Arc chain native token contract address. Implemented in [#13452](https://github.com/blockscout/blockscout/pull/13452). | Version: master
Default: `0x3600000000000000000000000000000000000000`
Applications: Indexer |
+| `INDEXER_ARC_NATIVE_TOKEN_SYSTEM_ADDRESS` | Arc chain system contract address emitting `NativeCoinTransferred` event. Implemented in [#13452](https://github.com/blockscout/blockscout/pull/13452). | Version: master
Default: `0x1800000000000000000000000000000000000000`
Applications: Indexer |