diff --git a/ethcore/src/engines/tendermint/vote_collector.rs b/ethcore/src/engines/tendermint/vote_collector.rs
new file mode 100644
index 000000000..bcf347053
--- /dev/null
+++ b/ethcore/src/engines/tendermint/vote_collector.rs
@@ -0,0 +1,37 @@
+// Copyright 2015, 2016 Ethcore (UK) Ltd.
+// This file is part of Parity.
+
+// Parity is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Parity 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 General Public License
+// along with Parity.  If not, see <http://www.gnu.org/licenses/>.
+
+//! Collects votes on hashes at each height and round.
+
+use super::vote::Vote;
+use super::{Height, Round, BlockHash};
+use common::{HashSet, HashMap, RwLock, H256, Address, Error, Hashable};
+use ethkey::{Signature, recover};
+
+/// Signed voting on hashes.
+#[derive(Debug)]
+pub struct VoteCollector {
+	/// Structure for storing all votes.
+	votes: RwLock<HashMap<(Height, Round), HashSet<Vote>>>,
+}
+
+impl VoteCollector {
+	pub fn new() -> VoteCollector {
+		VoteCollector { votes: RwLock::new(HashMap::new()) }
+	}
+
+	pub fn vote() {}
+}